John Wiercinski

LINE_JUDGE · BIG TENline_judge · Big Ten · 42 games since 2022

Worked ORE 17–14 NEB in week 7.

Games since '22Games since '22

7 in 20267 in 2026

Flags / g 2026Flags / g · 2026

14.6

— · LG 12.7— pctl · league 12.7

Acc. yds / gAcc. yds / g

117

LG 111League 111

Judgment shareJudgment share

58%

LG 60%League 60%

Home cookingHome cooking · raw

+0.2

Raw · under 8 GNo read under 8 games

Late whistleLate whistle

—

Under 8 gamesUnder 8 games

Game lengthGame length

3:23

LG 3:24League 3:24

Flag profile

Per game · | = league

HoldingJ

2.0

False startP

1.9

Pass interferenceJ

1.3

OffsideP

0.8

Delay of gameP

0.7

Unsportsmanlike conductJ

0.6

Roughing the passerJ

0.5

J = judgment · P = procedural · + 0.1 other / g · Career, 42 G

Leans

Flags over expected / g

Non-Big Ten teams12 G · −0.6 to +0.7

+0.1noise

Sun Belt teams3 G · raw, under 8 G

−1.4

C-USA teams2 G · raw, under 8 G

+2.2

Indiana8 G · −0.3 to +0.7

+0.2noise

Maryland6 G · raw, under 8 G

+0.3

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

Crew history

42 games

Crew history
Year	Crew · position	G	Flags/g
2026	Big Ten · line_judge	7	14.6
2025	Big Ten · line_judge	12	9.7
2024	Big Ten · line_judge	7	9.7
2023	Big Ten · line_judge	10	10.2
2022	Big Ten · head_line_judge	6	11.5

Replay reviews

Since 2025 · 19 G

Reviews, 0.8/g

47%

Overturned · 7

≈0.4 h

Of replay

Spot

4 · 1 OT

Broke the plane

3 · 2 OT

Catch / no catch

2 · 1 OT

Fumble

2 · 1 OT

Runner down

2 · 2 OT

Forward pass

1 · 0 OT

Sideline

1 · 0 OT

Longest: ≈ 3:58, runner was inbounds upheld · 2026 wk 4, Northwestern at
Indiana

■ 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 10:05 AM ET

Source: school box scores · Updated Fri 10:05 AM ET