Jason Nickelby

REFEREE · BIG TEN · NICKELBY CREWreferee · Big Ten · Nickelby crew · 3 games since 2025

Referee since 2025. Worked ILL 42–23 UAB in week 1.

Games since '25Games since '25

1 in 20261 in 2026

Flags / g 2026Flags / g · 2026

10.0

— · LG 12.7— pctl · league 12.7

Acc. yds / gAcc. yds / g

LG 111League 111

Judgment shareJudgment share

50%

LG 60%League 60%

Home cookingHome cooking · raw

+5.4

Raw · under 8 GNo read under 8 games

Late whistleLate whistle

—

Under 8 gamesUnder 8 games

Game lengthGame length

3:06

LG 3:24League 3:24

Flag profile

Per game · | = league

HoldingJ

3.7

False startP

2.3

Pass interferenceJ

1.3

Delay of gameP

1.0

OffsideP

1.0

Personal foulJ

1.0

EncroachmentP

0.3

J = judgment · P = procedural · + 0.0 other / g · Career, 3 G

Leans

Flags over expected / g

Illinois1 G · raw, under 8 G

−4.1

Oregon1 G · raw, under 8 G

+1.1

0 LEANS IN 40 SPLITS · ~2 EXPECTED BY LUCK · + = OPPONENT FLAGGED MORE

Crew history

3 games

Crew history
Year	Crew · position	G	Flags/g
2026	Big Ten · Nickelby crew · referee	1	10.0
2025	Big Ten · Nickelby crew · referee	2	13.5

Replay reviews

Career · 3 G

Reviews, 2.3/g

57%

Overturned · 4

≈0.1 h

Of replay

Spot

4 · 1 OT

Catch / no catch

1 · 1 OT

Broke the plane

1 · 1 OT

Runner down

1 · 1 OT

Longest: ≈ 3:03, first down upheld · 2025 wk 13, Washington at
UCLA

■ 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 10:04 AM ET

Source: school box scores · Updated Fri 10:04 AM ET