Usage / Role
61%
Regular offensive contributor
lowfeatured
Player Dossier
2016-2020Mississippi State
K.J. Costello
QB • 6'5" • 225 lbs • Coto De Caza, CA, USA
Balanced quarterback profileVolume operator
K.J. Costello is a balanced quarterback profile with 27.4 usage in the latest tracked season.
Impact Production
46
Developing production for a quarterback
lowelite
Reliability
70
Reliable weekly contributor
lowhigh
Star Power
44
Limited ceiling signals so far
limitedstar
Career Arc
Value trend by season
Best season by Season Value: 2018 Postseason · Stanford
16171718181920
Snapshot
- Career Teams
- 2
- Unique Seasons
- 5
- Program Path
- Stanford • Mississippi State
- Peak Game
- Peak game by takeover score: LSU
Player Story
K.J. Costello built his college career from 2016 through 2020 as a quarterback from Coto De Caza, CA wearing No. 3, spending time with Mississippi State and Stanford. The clearest part of K.J. Costello's career was...
Read the story4★
- Committed To
- Stanford
- Commit Date
- Jan 1, 2016
K.J. Costello, QB. Best season Best season by Season Value: 2018 Postseason · Stanford. K.J. Costello is a balanced quarterback profile with 27.4 usage in the latest tracked season.
Stat Footprint
Career production snapshot
- Total offense
- 7,434
- Passing yards
- 7,403
- Rushing yards
- 31
- Touchdowns
- 58
Quick Answers
K.J. Costello quick answers
- Latest team and position
- Mississippi State · QB
- Career Total Offense
- 7,434
- Tracked sample
- 5 unique seasons · 7 entries · 35 games
- Best season
- 2018 Postseason · Stanford
- Top game
- LSU
- Recruit profile
- 4-star · Santa Margarita Catholic · Stanford
- High school pipeline
- Santa Margarita Catholic · 44 FBS recruits · 3 drafted players
- Latest roster
- No. 3 · Senior
- 2020 Total offense rank
- 1,218 total offense · QB 91st (top 29%) · SEC 14th (top 11%) · National 96th (top 8%)
Season Ledger
Crawlable season-by-season stats
| Season | Team | Games | Total Offense | Pass Yds | Rush Yds | TD | Overall |
|---|---|---|---|---|---|---|---|
| 2016 Regular Season | Stanford | 0 | 0 | 0 | 0 | 0 | - |
| 2017 Postseason | Stanford | 11 | 205 | 212 | -7 | 3 | 52.1 |
| 2017 Regular Season | Stanford | 11 | 1,460 | 1,361 | 99 | 14 | 52.1 |
| 2018 Postseason | Stanford | 13 | 86 | 105 | -19 | 0 | 66.5 |
| 2018 Regular Season | Stanford | 13 | 3,413 | 3,414 | -1 | 29 | 66.5 |
| 2019 Regular Season | Stanford | 5 | 1,052 | 1,028 | 24 | 6 | 48.3 |
| 2020 Regular Season | Mississippi State | 6 | 1,218 | 1,283 | -65 | 6 | 44.1 |
Related Context
Keep exploring K.J. Costello
K.J. Costello played QB for Stanford and Mississippi State. Across 5 tracked seasons, K.J. Costello recorded 7,403 passing yards, 31 rushing yards, and -12 receiving yards. His top tracked season came in 2018 with Stanford.
Player insights
Lead takeaway
Best season by value score: 2018 Postseason
Stanford paired 3,499 primary output with 62.2 efficiency.
Supporting note
2017 Postseason role shape
pass-led usage with 66.2 efficiency.
Supporting note
Career value stayed steady
2020 Regular Season tracked close to the prior stop by season value score.
Supporting note
Multi-stop career journey
Production spans 2 team stops, with role shifts visible across Stanford, Mississippi State.
Supporting note
Peak game by takeover score: Arizona State
Win with 173 yards of offense and 74.2 efficiency. It landed in the 54.5th percentile of the selected season.
Analysis workspace
Season Workbench
Filter the strongest season sample, inspect game-level shape, and then drop into the full log without losing the story of the year.
Season Explorer
Understand the selected season before dropping into the full game log.
2017 Postseason · Stanford
Games
11
Primary Metric / G
151.4
Efficiency
66.2
Usage
8.5
Consistency
75.6
Best Game by takeover score
Arizona State
Hover a point or expand a game row to keep the active game context visible here.
Active game
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Game-by-Game Trend
Follow how the selected stat changes from one game to the next. Spikes mark standout outings, while dips show quieter weeks.
Chronological game order.
Game by game trend chart. TCU: 205. Rice: 105. UCLA: 138. Arizona State: 173. Utah: 76. Oregon: 59. Washington State: 104. Washington: 237. California: 201. Notre Dame: 175. USC: 192
Volume vs Efficiency
Each dot is a game. Farther right means the player carried more of the workload, and higher means they were more efficient with those chances.
Low volumeHigh quality
High volumeHigh quality
Low volumeLower quality
High volumeLower quality
Volume on the x-axis, quality on the y-axis.
Volume versus efficiency scatter chart. TCU: 28 by 47.8. Rice: 10 by 82.4. UCLA: 21 by 74.3. Arizona State: 24 by 74.2. Utah: 11 by 75.8. Oregon: 6 by 88.4. Washington State: 23 by 42.2. Washington: 32 by 69.1. California: 30 by 62.3. Notre Dame: 26 by 57.6. USC: 28 by 54.5
Split Comparison
Compare how this player performed across different situations. "Games" shows how many matchups are included in each split.
Wins145.5 · Games = 8 · -21.5 vs Losses
Losses167 · Games = 3 · +21.5 vs Wins
Game Log
Dense stat lines with inline explanations and season-linked highlights.
11 games
Featured metric
Total Offense
Top game by takeover score
Arizona State
Best efficiency game
88.4 vs Oregon
| Result | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fri 12/29 | @ TCU3+ TD | L 37-39 | 15 | 27 | 212 | 55.6 | 3 | 2 | 47.8 | 1 | -7 | -7 | 0 | 0 |
| Sat 12/2 | @ USC | L 28-31 | 10 | 22 | 192 | 45.5 | 2 | 0 | 54.5 | 6 | 0 | 0 | 0 | 14 |
| Sun 11/26 | vs Notre Dame3+ TD | W 38-20 | 14 | 22 | 176 | 63.6 | 4 | 0 | 57.6 | 4 | -1 | -0.30 | 0 | 4 |
| Sun 11/19 | vs California | W 17-14 | 17 | 26 | 185 | 65.4 | 1 | 1 | 62.3 | 4 | 16 | 4 | 0 | 9 |
| Sat 11/11 | vs Washington | W 30-22 | 16 | 27 | 211 | 59.3 | 0 | 0 | 69.1 | 5 | 26 | 5.20 | 0 | 18 |
| Sat 11/4 | @ Washington State | L 21-24 | 9 | 20 | 105 | 45.0 | 0 | 1 | 42.2 | 3 | -1 | -0.30 | 1 | 14 |
| Sun 10/15 | vs Oregon | W 49-7 | 5 | 6 | 59 | 83.3 | 1 | 0 | 88.4 | — | — | — | — | — |
| Sun 10/8 | @ Utah | W 23-20 | 5 | 9 | 57 | 55.6 | 0 | 0 | 75.8 | 2 | 19 | 9.50 | 0 | 12 |
| Sat 9/30 | vs Arizona State | W 34-24 | 15 | 24 | 173 | 62.5 | 1 | 0 | 74.2 | — | — | — | — | — |
| Sun 9/24 | vs UCLA3+ TD | W 58-34 | 13 | 19 | 123 | 68.4 | 2 | 0 | 74.3 | 2 | 15 | 7.50 | 1 | 9 |
| Sun 8/27 | @ Rice | W 62-7 | 5 | 9 | 80 | 55.6 | 0 | 0 | 82.4 | 1 | 25 | 25 | 1 | 25 |
Player Story
K.J. Costello story
K.J. Costello built his college career from 2016 through 2020 as a quarterback from Coto De Caza, CA wearing No. 3, spending time with Mississippi State and Stanford. The clearest part of K.J. Costello's career was his passing role: 7,403 passing yards, 55 touchdown passes, 997 attempts, and 31 rushing yards across 35 career games in the available record. His largest box-score season came in 2018 with Stanford. Those numbers show where he fit, how often the ball or action found him, and how his role developed over time.
Quarterback careers are usually judged first by volume, efficiency, and scoring chances. His career also includes 31 rushing yards and 1 tackle, giving the story more than a single-category snapshot. With 35 career games in the available record, his career has enough shape to show both opportunity and production across Mississippi State and Stanford.
The arc is straightforward: K.J. Costello moved through the depth chart, found a larger role, and turned that opportunity into production that can be understood through standard football numbers.
Career Arc
Track team changes, role shifts, and season-to-season movement.
- 1
Stanford
2016-2019
Opening stop
- 2
Mississippi State
2020
Final stop
Season Value Progression
2016201720172018201820192020
| Season | Team | Primary | Efficiency | Usage | Delta |
|---|---|---|---|---|---|
| 2016 Regular Season | Stanford | 0 | — | — | — |
| 2017 Postseason | Stanford | 1,665 | 66.2 | 8.5 | 1,665 |
| 2017 Regular Season | Stanford | 1,665 | 66.2 | 8.5 | 0 |
| 2018 Postseason | Stanford | 3,499 | 62.2 | 11.2 | 1,834 |
| 2018 Regular Season | Stanford | 3,499 | 62.2 | 11.2 | 0 |
| 2019 Regular Season | Stanford | 1,052 | 63.1 | 11.6 | -2,447 |
| 2020 Regular Season | Mississippi State | 1,218 | 39.5 | 27.4 | 166 |
Signature Performances
Top Games
#1 Featured game
@ LSU
Week 4 · W 44-34 · Conference game
Win shaped by high passing volume and turnover pressure.
585
Total Offense
76 takeover
585 total offense with 58.3 efficiency.
#2
vs Arizona State
Week 5 · W 34-24 · Conference game
173
Total Offense
73.6 takeover
Win with 173 yards of offense and 74.2 efficiency.
173 total offense with 74.2 efficiency.
#3
vs Washington State
Week 9 · L 38-41 · Conference game
323
Total Offense
72.5 takeover
Loss with 323 yards of offense and 66.5 efficiency.
323 total offense with 66.5 efficiency.
#4
vs Washington
Week 11 · W 30-22 · Conference game
237
Total Offense
65 takeover
Win with 237 yards of offense and 69.1 efficiency.
237 total offense with 69.1 efficiency.
#5
vs Oregon State
Week 11 · W 48-17 · Conference game
387
Total Offense
64.3 takeover
Win with 387 yards of offense and 86 efficiency.
387 total offense with 86 efficiency.
Top Seasons
#1 Season by Season Value
2018 Postseason · Stanford
3,499 primary output · 62.2 efficiency · 11.2 usage
66.5
#2
2018 Regular Season · Stanford
66.5
3,499 primary · 62.2 efficiency · 11.2 usage
#3
2017 Postseason · Stanford
52.1
1,665 primary · 66.2 efficiency · 8.5 usage
Milestones
10
250+ passing yards
10
300+ total offense
10
3+ TD games
17
Above avg efficiency
Next best actions
Keep exploring K.J. Costello
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