Gregory Nelson
CENTER_JUDGE · BIG TENcenter_judge · Big Ten · 45 games since 2022
Worked MICH 21–18 PSU in week 7.
Games since '22Games since '22
454 in 20264 in 2026
Flags / g 2026Flags / g · 2026
17.3— · LG 12.7— pctl · league 12.7
Acc. yds / gAcc. yds / g
145LG 111League 111
Judgment shareJudgment share
67%LG 60%League 60%
Home cookingHome cooking · raw
+1.2Raw · under 8 GNo read under 8 games
Late whistleLate whistle
—Under 8 gamesUnder 8 games
Game lengthGame length
3:38LG 3:24League 3:24
Flag profile
Per game · | = leagueJ = judgment · P = procedural · + 0.1 other / g · Career, 45 G
Leans
Flags over expected / g0 LEANS IN 40 SPLITS · ~2 EXPECTED BY LUCK · + = OPPONENT FLAGGED MORE
Crew history
45 gamesYear | Crew · position | G | Flags/g |
|---|---|---|---|
| 2026 | Big Ten · center_judge | 4 | 17.3 |
| 2025 | Big Ten · center_judge | 11 | 9.8 |
| 2024 | Big Ten · center_judge | 12 | 9.7 |
| 2023 | Big Ten · center_judge | 9 | 7.2 |
| 2022 | Big Ten · center_judge | 9 | 12.2 |
Replay reviews
Since 2025 · 15 GReviews, 0.9/g
Overturned · 8
Of replay
Longest: ≈ 2:37, short of the line to gain upheld · 2025 wk 14, Oregon at
Washington
■ 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 10:03 AM ET
Source: school box scores · Updated Fri 10:03 AM ET