Nathan Jastram

BACK_JUDGE · BIG 12back_judge · Big 12 · 36 games since 2022

Worked KSU 16–35 HOU in week 6.

Games since '22Games since '22

5 in 20265 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

64%

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

3:22

LG 3:24League 3:24

Flag profile

Per game · | = league

HoldingJ

2.3

False startP

1.9

Pass interferenceJ

1.1

OffsideP

0.8

Delay of gameP

0.6

Personal foulJ

0.5

Face maskJ

0.4

J = judgment · P = procedural · + 0.0 other / g · Career, 36 G

Leans

Flags over expected / g

Non-Big 12 teams14 G · −0.9 to +0.3

−0.3noise

Sun Belt teams3 G · raw, under 8 G

−0.4

bigsouthovc teams2 G · raw, under 8 G

−2.4

Arizona5 G · raw, under 8 G

−1.3

Arizona State5 G · raw, under 8 G

−1.2

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

Crew history

36 games

Crew history
Year	Crew · position	G	Flags/g
2026	Big 12 · back_judge	5	10.0
2025	Big 12 · back_judge	9	9.4
2024	Big 12 · back_judge	10	6.5
2023	Pac-12 · center_judge	10	10.2
2022	C-USA · center_judge	2	15.0

Replay reviews

Since 2025 · 14 G

Reviews, 0.6/g

78%

Overturned · 7

≈0.1 h

Of replay

Catch / no catch

2 · 1 OT

Runner down

2 · 2 OT

Clock

1 · 1 OT

Forward pass

1 · 1 OT

Broke the plane

1 · 0 OT

Sideline

1 · 1 OT

Spot

1 · 1 OT

Longest: ≈ 3:28, game clock overturned · 2026 wk 2, Arkansas at
Utah

■ 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 10:09 AM ET

Source: school box scores · Updated Fri 10:09 AM ET