Christopher Alston
BACK_JUDGE · BIG 12back_judge · Big 12 · 33 games since 2023
Worked BYU 24–10 ISU in week 6.
Games since '23Games since '23
334 in 20264 in 2026
Flags / g 2026Flags / g · 2026
11.3— · LG 12.7— pctl · league 12.7
Acc. yds / gAcc. yds / g
80LG 111League 111
Judgment shareJudgment share
36%LG 60%League 60%
Home cookingHome cooking · raw
−1.8Raw · under 8 GNo read under 8 games
Late whistleLate whistle
—Under 8 gamesUnder 8 games
Game lengthGame length
3:08LG 3:24League 3:24
Flag profile
Per game · | = leagueJ = judgment · P = procedural · + 0.1 other / g · Career, 33 G
Leans
Flags over expected / g0 LEANS IN 40 SPLITS · ~2 EXPECTED BY LUCK · + = OPPONENT FLAGGED MORE
Crew history
33 gamesYear | Crew · position | G | Flags/g |
|---|---|---|---|
| 2026 | Big 12 · back_judge | 4 | 11.3 |
| 2025 | Big 12 · back_judge | 9 | 11.3 |
| 2024 | Big 12 · back_judge | 10 | 11.3 |
| 2023 | Big 12 · back_judge | 10 | 11.1 |
Replay reviews
Since 2025 · 13 GReviews, 0.7/g
Overturned · 4
Of replay
Longest: ≈ 2:36, targeting upheld · 2026 wk 3, Murray State at
Oklahoma State
■ Overturned · review time = gap to next snap − game median
Flags / g = accepted penalties, games worked · Late whistle = 4th-q one-score judgment flags / play ÷ rest of game
Flags / g = accepted penalties · Home cooking = FOE on visitor − FOE on home, judgment flags only · Late whistle = 4th-q one-score judgment flags / play ÷ rest of game
Lean = pooled estimate whose 90% interval misses 0 with ≥ 8 G · shrunk toward 0 · judgment flags only · permutation luck check, 1,000 shuffles
Lean = pooled estimate whose 90% interval misses 0 with ≥ 8 G · shrunk toward 0 · luck check = 1,000 shuffles · source: school box scores · Updated Fri 9:59 AM ET
Source: school box scores · Updated Fri 9:59 AM ET