2020 Football Roster
Roster
Costello, K.J.
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Jersey Number 3
K.J. Costello
- Position:
- QB
- Height:
- 6-5
- Weight:
- 225
- Class:
- Senior
- Hometown:
- Rancho Santa Margarita, Calif.
- High School/Previous School:
- Santa Margarita Catholic (Stanford)
Bio
SEC Graduate
SEC Offensive Player of the Week (Sept. 28, 2020)
Maxwell Award National Player of the Week (Sept. 28, 2020)
Walter Camp FBS National Offensive Player of the Week (Sept. 28, 2020)
Davey O’Brien National Quarterback of the Week (Sept. 28, 2020)
Manning Award National Quarterback of the Week (Sept. 28, 2020)
2018 Second-Team All-Pac-12
2018 Pac-12 All-Academic Honorable Mention
2017 Pac-12 All-Academic Honorable Mention
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Career Notes and Records
Career: Graduate transfer from Stanford … Made 30 career starts at quarterback ... Owns his degree in political science from Stanford … Owns 10 300-yard passing games in his career (7 in 2018; 1 in 2019; 2 in 2020) … Has thrown four-or-more touchdown passes on six occasions (1 in 2017; 4 in 2018; 1 in 2020) … Responsible for 58 career touchdowns (55 pass, 3 rush) … Left Stanford among the top 10 all-time in passing efficiency (No. 3; 143.8), completions percentage (No. 5; .626), touchdown passes (No. 6; 49), passing completions (No. 8; 495), total offense (No. 8 tied; 6,247 yards), passing yards (No. 9; 6,151), passing attempts (No. 10; 791).
2020 (Senior Season)
Awards: Tabbed SEC Offensive Player of the Week along with Maxwell and Walter Camp FBS National Offensive Player of the Week after throwing for a school and SEC-record 623 yards at LSU (9/26) ... Also garnered Davey O’Brien and Manning Award National Quarterback of the Week, and a helmet sticker from ESPN's College Football Final ... Preseason candidate for the Maxwell Award, which is presented annually to the most outstanding player in college football ... Named to the Johnny Unitas Golden Arm Award preseason watch list.
Season: Appeared in six game with five starts ... One of 27 student-athletes to make their Mississippi State debut in 2020 ... Set the Mississippi State and SEC single-game record for yards passing at LSU with 623 yards, previously held by Dak Prescott (508; Arkansas, 2015) and Georgia's Eric Zeier (544; Southern Miss, 1993), respectively ... The 623 yards passing at LSU rank No. 11 in NCAAÂ single-game history ... Is the first SEC quarterback to throw for 600 yards in a game ... Set the then-school standard for passing attempts (60) at LSU, besting Joe Reed (52; LSU, 1970) ... Surpassed Prescott (33; Arkansas, 2015) for most completions in a single game against Arkansas (43), which was later broken by Will Rogers (45; at Ole Miss, 11/28/20) ... Second quarterback in program history with back-to-back games of 30+ completions, joining Prescott (38 - at Arkansas, 2015; 31 - Ole Miss, 2015) ... Completed a school-record 12 straight passes against Arkansas, besting the 11 straight completions by Garrett Shrader (Kentucky, 2019) and Dave Marler (vs. Tennessee, 1978).
Final Rankings: Ranked No. 79 in the FBS and No. 11 in the SEC in passing yards (1,283).
at LSU (9/26): Broke the SEC and MSU record for passing yards in a game with 623 yards, completing 36-of-60 passes with five touchdowns ... His 623 yards passing rank 11th in NCAA history ... The previous MSU record for passing yards in a game was 508 yards by Dak Prescott versus Arkansas in 2015 ... The previous SEC record was 544 yards by Georgia's Eric Zeier versus Southern Miss in 1993 ... Also set a then-MSU record with 60 passing attempts (52; Reed, 1970) ... Five touchdown passes tied the MSU school record (Last: Thompson, 2018) ... Completed 15 passes that were 20 yards or longer ... Was 7-of-11 passing on third downs, throwing for 194 yards and three touchdowns ... Found Kylin Hill for a 75-yard touchdown pass to answer LSU's touchdown in the third quarter and give MSU a 27-24 lead ... Connected with Osirus Mitchell in the end zone twice, including a 24-yard strike with 3:39 left in the game that made the score 44-34. Arkansas (10/3): Threw for 313 yards and one touchdown on 43-of-59 passing ... Surpassed Dak Prescott (38; at Arkansas, 2015) for MSU's single game completions mark (43), which was later broken by Will Rogers (45; at Ole Miss) ... Second quarterback in program history with 30 completions in consecutive games, joining Prescott (38 - at Arkansas, 2015; 31 - Ole Miss, 2015) ... Connected with JaVonta Payton for a 17-yard touchdown in the first quarter, capping a 75-yard drive. at Kentucky (10/10): Finished 36-of-55 passing for 232 yards ... Became the fastest MSU passer to reach 1,000 to start a season (three games) ... Combined with Will Rogers to throw 70 passing attempts, setting the SEC and MSU single-game records ... The previous MSU was 60 attempts, which occurred in each of the first two games of the 2020 season, while the SEC record was 69 by LSU against Auburn in 1999 ... The duo combined for an MSU record 45 completions, a mark that ranks third in SEC history. Texas A&M (10/17): Threw for 99 yards on 15-of-22 passing. at Alabama (10/31): Went 4-of-11 passing for 16 yards ... Played just three plays in the second quarter and didn't play the third and fourth quarters. Missouri (12/19): Attempted two passes.
2019 (Junior Season)
Season: Started five games … Missed time due to injury … Named team captain.
Northwestern (8/31): Completed 16-of-20 passes for 152 yards and one touchdown … Rushed five times for 12 yards … Opened the scoring with a 90-yard touchdown drive in the second quarter … Capped the touchdown drive with a 2-yard completion to Michael Wilson. at UCF (9/14): Passed for 199 yards to move into No. 9 all-time in Stanford history in passing yards, surpassing Trent Edwards (5,429; 2003-06) … Hit on 21-of-44 passes with one touchdown … Rushed twice for 15 yards … Hit Michael Wilson on a 24-yards scoring strike in the fourth quarter. Oregon (9/21): Completed 16-of-30 passes for 120 yards. Arizona (10/26): Finished 13-of-44 passing for 322 yards and three touchdowns … Was 19-of-27 passing with 223 yards and two touchdowns in the first half … Completed passes to 12 different receivers, including himself … Rushed once for 14 yards … Caught one pass – a batted attempt at the line of scrimmage – for a loss of 12 yards … Hit Brycen Tremayne on a 14-yard touchdown pass in the back of the end zone in the second quarter … Found Simi Fehoko for a 44-yard touchdown pass in the second quarter … Tossed a 14-yard scoring pass to Fehoko in the third quarter. at Colorado (11/9): Completed 18-of-29 for 245 yards and one touchdown … Gave Stanford a fourth-quarter lead with a 79-yard touchdown pass to Simi Fehoko.
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2018 (Sophomore Season – Sophomore Season)
Season: Started all 13 games … Named team captain ... Finished No. 2 in single-season passing yards (3,540) and 300-yard passing games (7) … Ended the season No. 3 on the single-season touchdown passes (29) and total offense (3,520 yards) lists … Capped the season No. 4 in single-season passing attempts (413) and completions (269) … Finished No. 5 in single-season passing efficiency (155.0).
Rankings: Led the Pac-12 and was No. 12 nationally in yards per attempt (8.57) … Led Pac-12 and finished No. 16 in the FBS in passing efficiency (155.0) … Was No. 2 in the Pac-12 and No. 13 nationally in passing touchdowns (29) … Ended No. 2 in the Pac-12 and No. 16 in the FBS in passing yards (3,540) … Finished No. 2 in the Pac-12 and No. 22 in the NCAA in completion percentage (65.1%) … Ranked  No. 2 in the Pac-12 and No. 24 nationally completions per game (20.7) … Was No. 2 in the Pac-12 and No. 26 in the FBS in yards per completion (13.16) … Ended No. 2 in the Pac-12 and No. 27 27 in the NCAA in total offense per game (270.8).
San Diego State (8/31): Completed 21-of-31 passes for 332 yards … Threw four touchdown passes … Threw touchdown strikes of 38, 19, 80 and 19 yards … The 80-yard strike to JJ Arcega-Whiteside ranks No. 11 all-time. No. 17 USC (9/8): Threw for 183 yards on 16-of-27 passing with one touchdown pass … Rushed once for 12 yards … Hit Colby Parkinson for the eventual game-winning score with 34 seconds left in the first half. UC Davis (9/15): Hit on 17-of-34 passes for 214 yards and two touchdowns … Found JJ Arcega-Whiteside on 9 and 8-yard scoring passes in the second quarter. at No. 20 Oregon (9/22): Completed 19-of-26 passes for 327 yards … Tossed three touchdown passes … Had one touchdown pass in the first half, second half and overtime … Connected with JJ Arcega-Whiteside for touchdowns of 13 and 15 yards in regulation … Hit Colby Parkinson on a 23-yard scoring strike in overtime for the win … Led Stanford on a six-play, 46-yard drive in 51 seconds to set up the game-tying field goal as time expired. at No. 8 Notre Dame (9/29): Threw for 174 yards on 15-of-27 passing … Threw one touchdown pass. Utah (10/6): Logged 381 yards passing with one touchdown … Completed 26-of-41 passes. at Arizona State (10/18): Was 22-of-29 passing for 231 yards and one touchdown … Hit JJ Arcega-Whiteside on a 28-yard touchdown strike for the go-ahead score in the third quarter … Ran four times for 18 yards. No. 14 Washington State (10/27): Completed 34 passes to tie for No. 6 in single-game history at Stanford … Went 34-of-43 passing for 323 yards … Threw touchdown passes of 18, 10, 1 and 25 yards … Ran seven times for 19 yards … Connected with JJ Arcega-Whiteside on a 25-yard scoring strike to tie the game at 38 with 1:25 remaining in the game, before WSU kicked a game-winning field goal with 19 seconds left. at Washington (11/3): Logged 347 yards on 29-of-43 passing … Tossed two touchdown passes. Oregon State (11/10): Was 23-of-33 passing for 342 yards and four touchdown passes … Rushed once for 45 yards … All four touchdown passes came in the first half … Threw scoring strikes of 28, 9, 75 and 5 yards … All four scoring tosses went to Colby Parkinson. at UCLA (11/24): Completed 23-of-37 passes for 344 yards and five touchdowns … Five touchdown passes are tied for No. 2 on the Stanford single-game charts … Ran twice for nine yards … Touchdown passes went for 19, 37, 23, 2 and 52 yards … Hit Osiris St. Brown on a 52-yard scoring strike with 8:19 to play in the fourth quarter for the game-winning score. at Cal (12/1): Went 18-for-29 passing for 237 yards … Lone touchdown pass found Cameron Scarlett for 46 yards in the first quarter. vs. Pittsburgh (12/31): Completed 6-of-17 passes for 105 yards.
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2017 (Redshirt Freshman Season)
Season: Appeared in 11 games with seven starts … Started the final six games of the season.
Rankings: Ranked No. 6 in the Pac-12 and No. 38 nationally in passing efficiency (139.5) … Finished No. 5 in the Pac-12 and No. 46 in the FBS in yards per completion (12.69) … Was No. 8 in the Pac-12 and No. 51 in the NCAA in yards per attempt (7.45) … Ranked No. 10 in the Pac-12 and No. 62 nationally in completion percentage (.588).
vs. Rice (8/26): Made collegiate debut in game played in Sidney, Australia … Went 5-of-9 passing for 80 yards … Rushed once for 25 yards and one touchdown …  Scored the final touchdown of the game on his 25-yard rush in the fourth quarter. UCLA (9/23): Completed 13-of-19 passes for 123 yards and two touchdowns … Rushed for 15 yards and one touchdown on two carries … Entered on the final drive of the first half … Ran in from nine yards out to give Stanford a lead it would not relinquish … Completed touchdown passes of 15 and three yards in the second half. Arizona State (9/30): Made first career start … Finished 15-of-24 passing for 173 yards and one touchdown … Hit JJ Arcega-Whiteside on a 12-yard touchdown pass in the second quarter. at No. 20 Utah (10/7): Went 5-of-9 passing for 57 yards off the bench … Ran twice for 19 yards. Oregon (10/14): Saw action in the fourth quarter … Wen 5-of-6 passing for 59 yards and one touchdown … Hit Colby Parkinson on a 2-yard touchdown pass. at No. 25 Washington State (11/4): Began his streak of six straight starts to end the season … Went 9-of-20 for 105 yards … Rushed three times for minus-1 yards and one touchdown … Capped a third-quarter scoring drive with a 14-yard touchdown run. No. 9 Washington (11/10): Completed 16-of-27 passes for 211 yards … Rushed for 26 yards on five carries. Cal (11/18): Threw for 185 yards and one touchdown on 17-of-26 passing … Ran for 16 yards on four carries … Hit Kaden Smith with a 17-yard scoring pass in the second quarter. No. 9 Notre Dame (11/25): Completed 14-of-22 passes for 176 yards and four touchdowns … Threw touchdown passes of 29, 4, 19 and 12 yards … Found Trenton Irwin on a 29-yard scoring pass in the first quarter … Threw a 4-yard scoring pass to JJ Arcega-Whiteside in the second quarter … Gave Stanford the lead for good on a 19-yard scoring pass to Kaden Smith early in the fourth quarter … Found Dalton Schultz on a 12-yard touchdown pass in the fourth quarter. vs. No. 11 USC (12/1): Wnt 10-of-22 passing for 192 yards and two touchdowns in the Pac-12 Championship Game … Gave MSU the lead heading into the fourth quarter with an 11-yard touchdown pass to Kaden Smith late in the third quarter … Hit Smith again with a 28-yard touchdown pass late in the fourth quarter to cut the USC lead to three points. vs. No. 13 TCU (12/28): Threw for 212 yards and three touchdowns on 15-of-27 passing in the Alamo Bowl … All three touchdown passes went to JJ Arcega-Whiteside … Scoring passes went for 18, 14 and 4 yards.
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2016 (True Freshman Season)
Redshirted his initial year with the program.
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High School
Prepped at Santa Margarita Catholic High School under head coach Rick Curtis … Four-star prospect by ESPN, Rivals and  247Sports … Rated the No. 19 overall recruit by ESPN … Tabbed No. 2 pro-style quarterback nationally by ESPN and Rivals … California's No. 2 recruit by ESPN … Named to the U.S. Army All-America Game … Was an Elite 11 finalist … Earned all-state honors as a junior and senior … Holds 19 school records … Owns the SMCHS career passing yards record (8,222 yards), which broke Carson Palmer's school record … Threw a school-record 62 passing touchdowns … Added 19 career rushing touchdowns … Owns the school standard with 452 yards passing in a single game … Earned Presidential Honor Roll (4.0 GPA or higher).
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Personal
Born Kevin Richard Costello on June 7, 1997 … Son of Annette and Kevin Costello … Has two siblings – Paige and Tiffany … Enjoys playing ping pong and golf … Owns his degree in political science from Stanford … Pursuing his master’s in business administration … Twitter handle is @kj_costello.
SEC Offensive Player of the Week (Sept. 28, 2020)
Maxwell Award National Player of the Week (Sept. 28, 2020)
Walter Camp FBS National Offensive Player of the Week (Sept. 28, 2020)
Davey O’Brien National Quarterback of the Week (Sept. 28, 2020)
Manning Award National Quarterback of the Week (Sept. 28, 2020)
2018 Second-Team All-Pac-12
2018 Pac-12 All-Academic Honorable Mention
2017 Pac-12 All-Academic Honorable Mention
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Career Notes and Records
Career: Graduate transfer from Stanford … Made 30 career starts at quarterback ... Owns his degree in political science from Stanford … Owns 10 300-yard passing games in his career (7 in 2018; 1 in 2019; 2 in 2020) … Has thrown four-or-more touchdown passes on six occasions (1 in 2017; 4 in 2018; 1 in 2020) … Responsible for 58 career touchdowns (55 pass, 3 rush) … Left Stanford among the top 10 all-time in passing efficiency (No. 3; 143.8), completions percentage (No. 5; .626), touchdown passes (No. 6; 49), passing completions (No. 8; 495), total offense (No. 8 tied; 6,247 yards), passing yards (No. 9; 6,151), passing attempts (No. 10; 791).
2020 (Senior Season)
Awards: Tabbed SEC Offensive Player of the Week along with Maxwell and Walter Camp FBS National Offensive Player of the Week after throwing for a school and SEC-record 623 yards at LSU (9/26) ... Also garnered Davey O’Brien and Manning Award National Quarterback of the Week, and a helmet sticker from ESPN's College Football Final ... Preseason candidate for the Maxwell Award, which is presented annually to the most outstanding player in college football ... Named to the Johnny Unitas Golden Arm Award preseason watch list.
Season: Appeared in six game with five starts ... One of 27 student-athletes to make their Mississippi State debut in 2020 ... Set the Mississippi State and SEC single-game record for yards passing at LSU with 623 yards, previously held by Dak Prescott (508; Arkansas, 2015) and Georgia's Eric Zeier (544; Southern Miss, 1993), respectively ... The 623 yards passing at LSU rank No. 11 in NCAAÂ single-game history ... Is the first SEC quarterback to throw for 600 yards in a game ... Set the then-school standard for passing attempts (60) at LSU, besting Joe Reed (52; LSU, 1970) ... Surpassed Prescott (33; Arkansas, 2015) for most completions in a single game against Arkansas (43), which was later broken by Will Rogers (45; at Ole Miss, 11/28/20) ... Second quarterback in program history with back-to-back games of 30+ completions, joining Prescott (38 - at Arkansas, 2015; 31 - Ole Miss, 2015) ... Completed a school-record 12 straight passes against Arkansas, besting the 11 straight completions by Garrett Shrader (Kentucky, 2019) and Dave Marler (vs. Tennessee, 1978).
Final Rankings: Ranked No. 79 in the FBS and No. 11 in the SEC in passing yards (1,283).
at LSU (9/26): Broke the SEC and MSU record for passing yards in a game with 623 yards, completing 36-of-60 passes with five touchdowns ... His 623 yards passing rank 11th in NCAA history ... The previous MSU record for passing yards in a game was 508 yards by Dak Prescott versus Arkansas in 2015 ... The previous SEC record was 544 yards by Georgia's Eric Zeier versus Southern Miss in 1993 ... Also set a then-MSU record with 60 passing attempts (52; Reed, 1970) ... Five touchdown passes tied the MSU school record (Last: Thompson, 2018) ... Completed 15 passes that were 20 yards or longer ... Was 7-of-11 passing on third downs, throwing for 194 yards and three touchdowns ... Found Kylin Hill for a 75-yard touchdown pass to answer LSU's touchdown in the third quarter and give MSU a 27-24 lead ... Connected with Osirus Mitchell in the end zone twice, including a 24-yard strike with 3:39 left in the game that made the score 44-34. Arkansas (10/3): Threw for 313 yards and one touchdown on 43-of-59 passing ... Surpassed Dak Prescott (38; at Arkansas, 2015) for MSU's single game completions mark (43), which was later broken by Will Rogers (45; at Ole Miss) ... Second quarterback in program history with 30 completions in consecutive games, joining Prescott (38 - at Arkansas, 2015; 31 - Ole Miss, 2015) ... Connected with JaVonta Payton for a 17-yard touchdown in the first quarter, capping a 75-yard drive. at Kentucky (10/10): Finished 36-of-55 passing for 232 yards ... Became the fastest MSU passer to reach 1,000 to start a season (three games) ... Combined with Will Rogers to throw 70 passing attempts, setting the SEC and MSU single-game records ... The previous MSU was 60 attempts, which occurred in each of the first two games of the 2020 season, while the SEC record was 69 by LSU against Auburn in 1999 ... The duo combined for an MSU record 45 completions, a mark that ranks third in SEC history. Texas A&M (10/17): Threw for 99 yards on 15-of-22 passing. at Alabama (10/31): Went 4-of-11 passing for 16 yards ... Played just three plays in the second quarter and didn't play the third and fourth quarters. Missouri (12/19): Attempted two passes.
2019 (Junior Season)
Season: Started five games … Missed time due to injury … Named team captain.
Northwestern (8/31): Completed 16-of-20 passes for 152 yards and one touchdown … Rushed five times for 12 yards … Opened the scoring with a 90-yard touchdown drive in the second quarter … Capped the touchdown drive with a 2-yard completion to Michael Wilson. at UCF (9/14): Passed for 199 yards to move into No. 9 all-time in Stanford history in passing yards, surpassing Trent Edwards (5,429; 2003-06) … Hit on 21-of-44 passes with one touchdown … Rushed twice for 15 yards … Hit Michael Wilson on a 24-yards scoring strike in the fourth quarter. Oregon (9/21): Completed 16-of-30 passes for 120 yards. Arizona (10/26): Finished 13-of-44 passing for 322 yards and three touchdowns … Was 19-of-27 passing with 223 yards and two touchdowns in the first half … Completed passes to 12 different receivers, including himself … Rushed once for 14 yards … Caught one pass – a batted attempt at the line of scrimmage – for a loss of 12 yards … Hit Brycen Tremayne on a 14-yard touchdown pass in the back of the end zone in the second quarter … Found Simi Fehoko for a 44-yard touchdown pass in the second quarter … Tossed a 14-yard scoring pass to Fehoko in the third quarter. at Colorado (11/9): Completed 18-of-29 for 245 yards and one touchdown … Gave Stanford a fourth-quarter lead with a 79-yard touchdown pass to Simi Fehoko.
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2018 (Sophomore Season – Sophomore Season)
Season: Started all 13 games … Named team captain ... Finished No. 2 in single-season passing yards (3,540) and 300-yard passing games (7) … Ended the season No. 3 on the single-season touchdown passes (29) and total offense (3,520 yards) lists … Capped the season No. 4 in single-season passing attempts (413) and completions (269) … Finished No. 5 in single-season passing efficiency (155.0).
Rankings: Led the Pac-12 and was No. 12 nationally in yards per attempt (8.57) … Led Pac-12 and finished No. 16 in the FBS in passing efficiency (155.0) … Was No. 2 in the Pac-12 and No. 13 nationally in passing touchdowns (29) … Ended No. 2 in the Pac-12 and No. 16 in the FBS in passing yards (3,540) … Finished No. 2 in the Pac-12 and No. 22 in the NCAA in completion percentage (65.1%) … Ranked  No. 2 in the Pac-12 and No. 24 nationally completions per game (20.7) … Was No. 2 in the Pac-12 and No. 26 in the FBS in yards per completion (13.16) … Ended No. 2 in the Pac-12 and No. 27 27 in the NCAA in total offense per game (270.8).
San Diego State (8/31): Completed 21-of-31 passes for 332 yards … Threw four touchdown passes … Threw touchdown strikes of 38, 19, 80 and 19 yards … The 80-yard strike to JJ Arcega-Whiteside ranks No. 11 all-time. No. 17 USC (9/8): Threw for 183 yards on 16-of-27 passing with one touchdown pass … Rushed once for 12 yards … Hit Colby Parkinson for the eventual game-winning score with 34 seconds left in the first half. UC Davis (9/15): Hit on 17-of-34 passes for 214 yards and two touchdowns … Found JJ Arcega-Whiteside on 9 and 8-yard scoring passes in the second quarter. at No. 20 Oregon (9/22): Completed 19-of-26 passes for 327 yards … Tossed three touchdown passes … Had one touchdown pass in the first half, second half and overtime … Connected with JJ Arcega-Whiteside for touchdowns of 13 and 15 yards in regulation … Hit Colby Parkinson on a 23-yard scoring strike in overtime for the win … Led Stanford on a six-play, 46-yard drive in 51 seconds to set up the game-tying field goal as time expired. at No. 8 Notre Dame (9/29): Threw for 174 yards on 15-of-27 passing … Threw one touchdown pass. Utah (10/6): Logged 381 yards passing with one touchdown … Completed 26-of-41 passes. at Arizona State (10/18): Was 22-of-29 passing for 231 yards and one touchdown … Hit JJ Arcega-Whiteside on a 28-yard touchdown strike for the go-ahead score in the third quarter … Ran four times for 18 yards. No. 14 Washington State (10/27): Completed 34 passes to tie for No. 6 in single-game history at Stanford … Went 34-of-43 passing for 323 yards … Threw touchdown passes of 18, 10, 1 and 25 yards … Ran seven times for 19 yards … Connected with JJ Arcega-Whiteside on a 25-yard scoring strike to tie the game at 38 with 1:25 remaining in the game, before WSU kicked a game-winning field goal with 19 seconds left. at Washington (11/3): Logged 347 yards on 29-of-43 passing … Tossed two touchdown passes. Oregon State (11/10): Was 23-of-33 passing for 342 yards and four touchdown passes … Rushed once for 45 yards … All four touchdown passes came in the first half … Threw scoring strikes of 28, 9, 75 and 5 yards … All four scoring tosses went to Colby Parkinson. at UCLA (11/24): Completed 23-of-37 passes for 344 yards and five touchdowns … Five touchdown passes are tied for No. 2 on the Stanford single-game charts … Ran twice for nine yards … Touchdown passes went for 19, 37, 23, 2 and 52 yards … Hit Osiris St. Brown on a 52-yard scoring strike with 8:19 to play in the fourth quarter for the game-winning score. at Cal (12/1): Went 18-for-29 passing for 237 yards … Lone touchdown pass found Cameron Scarlett for 46 yards in the first quarter. vs. Pittsburgh (12/31): Completed 6-of-17 passes for 105 yards.
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2017 (Redshirt Freshman Season)
Season: Appeared in 11 games with seven starts … Started the final six games of the season.
Rankings: Ranked No. 6 in the Pac-12 and No. 38 nationally in passing efficiency (139.5) … Finished No. 5 in the Pac-12 and No. 46 in the FBS in yards per completion (12.69) … Was No. 8 in the Pac-12 and No. 51 in the NCAA in yards per attempt (7.45) … Ranked No. 10 in the Pac-12 and No. 62 nationally in completion percentage (.588).
vs. Rice (8/26): Made collegiate debut in game played in Sidney, Australia … Went 5-of-9 passing for 80 yards … Rushed once for 25 yards and one touchdown …  Scored the final touchdown of the game on his 25-yard rush in the fourth quarter. UCLA (9/23): Completed 13-of-19 passes for 123 yards and two touchdowns … Rushed for 15 yards and one touchdown on two carries … Entered on the final drive of the first half … Ran in from nine yards out to give Stanford a lead it would not relinquish … Completed touchdown passes of 15 and three yards in the second half. Arizona State (9/30): Made first career start … Finished 15-of-24 passing for 173 yards and one touchdown … Hit JJ Arcega-Whiteside on a 12-yard touchdown pass in the second quarter. at No. 20 Utah (10/7): Went 5-of-9 passing for 57 yards off the bench … Ran twice for 19 yards. Oregon (10/14): Saw action in the fourth quarter … Wen 5-of-6 passing for 59 yards and one touchdown … Hit Colby Parkinson on a 2-yard touchdown pass. at No. 25 Washington State (11/4): Began his streak of six straight starts to end the season … Went 9-of-20 for 105 yards … Rushed three times for minus-1 yards and one touchdown … Capped a third-quarter scoring drive with a 14-yard touchdown run. No. 9 Washington (11/10): Completed 16-of-27 passes for 211 yards … Rushed for 26 yards on five carries. Cal (11/18): Threw for 185 yards and one touchdown on 17-of-26 passing … Ran for 16 yards on four carries … Hit Kaden Smith with a 17-yard scoring pass in the second quarter. No. 9 Notre Dame (11/25): Completed 14-of-22 passes for 176 yards and four touchdowns … Threw touchdown passes of 29, 4, 19 and 12 yards … Found Trenton Irwin on a 29-yard scoring pass in the first quarter … Threw a 4-yard scoring pass to JJ Arcega-Whiteside in the second quarter … Gave Stanford the lead for good on a 19-yard scoring pass to Kaden Smith early in the fourth quarter … Found Dalton Schultz on a 12-yard touchdown pass in the fourth quarter. vs. No. 11 USC (12/1): Wnt 10-of-22 passing for 192 yards and two touchdowns in the Pac-12 Championship Game … Gave MSU the lead heading into the fourth quarter with an 11-yard touchdown pass to Kaden Smith late in the third quarter … Hit Smith again with a 28-yard touchdown pass late in the fourth quarter to cut the USC lead to three points. vs. No. 13 TCU (12/28): Threw for 212 yards and three touchdowns on 15-of-27 passing in the Alamo Bowl … All three touchdown passes went to JJ Arcega-Whiteside … Scoring passes went for 18, 14 and 4 yards.
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2016 (True Freshman Season)
Redshirted his initial year with the program.
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High School
Prepped at Santa Margarita Catholic High School under head coach Rick Curtis … Four-star prospect by ESPN, Rivals and  247Sports … Rated the No. 19 overall recruit by ESPN … Tabbed No. 2 pro-style quarterback nationally by ESPN and Rivals … California's No. 2 recruit by ESPN … Named to the U.S. Army All-America Game … Was an Elite 11 finalist … Earned all-state honors as a junior and senior … Holds 19 school records … Owns the SMCHS career passing yards record (8,222 yards), which broke Carson Palmer's school record … Threw a school-record 62 passing touchdowns … Added 19 career rushing touchdowns … Owns the school standard with 452 yards passing in a single game … Earned Presidential Honor Roll (4.0 GPA or higher).
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Personal
Born Kevin Richard Costello on June 7, 1997 … Son of Annette and Kevin Costello … Has two siblings – Paige and Tiffany … Enjoys playing ping pong and golf … Owns his degree in political science from Stanford … Pursuing his master’s in business administration … Twitter handle is @kj_costello.
FOOTBALL | Anthony Evans III Game Week vs. Alcorn State Media Session
Monday, September 08
FOOTBALL | Nic Mitchell Game Week vs. Alcorn State Media Session
Monday, September 08
FOOTBALL | Canon Boone Game Week vs. Alcorn State Media Session
Monday, September 08
FOOTBALL | DeAgo Brumfield Game Week vs. Alcorn State Media Session
Monday, September 08
