Jirehl Brock: RB · Iowa State · #21.
Closest statistical matches, adjusted for opponent strength.
Jirehl Brock
Just keeps getting the ball, series after series. Fourth year in the Iowa State backfield. One game to point at: 104 rushing yards and 13 receiving yards against Southeast Missouri State — Week 1, 2022.
Play style
Built to take 20+ carries per game. Volume is the value.
Boom vs consistent · carry-yardage shape
Feast or famine
32.5% of his season rushing yards came on his 5 best carries — and he's stuffed on 16.5% of his carries. 2 carries for 4 yds vs Texas; 16 for 104 vs Southeast Missouri State.
Counted from the play-by-play, so a carry or two can differ from the box score.
Short-yardage / goal-line · enumeration
Who gets the tough yard
6 of the team's 23 inside-the-5 carries (26.1%).
No outlet on our list has written about this player by name this season.
FOX61 Oct 28
The Des Moines Register Oct 23
Arizona Daily Star Oct 22
Wide Right & Natty Lite Oct 16Swipe the table sideways for more columns.
| Season | Team | |||||
|---|---|---|---|---|---|---|
| 2022 | Iowa State | 99 | 445 | 4.5 | 3 | 61 |
| 2021 | Iowa State | 37 | 174 | 4.7 | 1 | 40 |
| 2020 | Iowa State | 13 | 46 | 3.5 | 0 | 11 |
| 2019 | Iowa State | 9 | 48 | 5.3 | 0 | 13 |
| Career | 158 | 713 | 4.5 | 4 | 61 |
| Season | Team | |||||
|---|---|---|---|---|---|---|
| 2022 | Iowa State | 21 | 113 | 5.4 | 1 | 13 |
| 2021 | Iowa State | 7 | 43 | 6.1 | 1 | 9 |
| 2020 | Iowa State | 4 | 32 | 8.0 | 0 | 11 |
| 2019 | Iowa State | -- | -- | -- | -- | -- |
| Career | 32 | 188 | 5.9 | 2 | 13 |
Game log · Week-by-week
2022 season · 10 games
Swipe the table sideways for more columns.
| Wk | Opp | CAR | YDS | AVG | TD | LONG | Note |
|---|---|---|---|---|---|---|---|
| Wk 1 | W 42-10vs Southeast Missouri State | 16 | 104 | 6.5 | 1 | 23 | Season-high 104 yds |
| Wk 2 | W 10-7@ Iowa | 27 | 100 | 3.7 | 0 | 15 | |
| Wk 3 | W 43-10vs Ohio | 7 | 76 | 10.9 | 0 | 61 | |
| Wk 4 | L 24-31vs No. 17 Baylor | 14 | 73 | 5.2 | 1 | 37 | |
| Wk 5 | L 11-14@ Kansas | 1 | 8 | 8.0 | 0 | 8 | |
| Wk 6 | L 9-10vs No. 20 Kansas State | 13 | 33 | 2.5 | 0 | 6 | |
| Wk 7 | L 21-24@ No. 22 Texas | 2 | 4 | 2.0 | 0 | 2 | |
| Wk 9 | L 13-27vs Oklahoma | 11 | 22 | 2.0 | 0 | 7 | |
| Wk 10 | W 31-14vs West Virginia | 4 | 13 | 3.3 | 0 | 4 | |
| Wk 11 | L 14-20@ Oklahoma State | 4 | 12 | 3.0 | 1 | 11 | |
| Total | 99 | 445 | 4.5 | 3 | 61 |
Week 4 · 2022
L 24-31
vs Baylor
73 rush yds (14 car) · 1 TD · 3 rec · 17 yds · 1 TD
With H. Dekkers — 284 yds · 2 TD · 2 INT · QBR 51.0 · T. Perkins — 48.3 yards per punt · 4 punts · 2 inside the 20
The plays that mattered most
Rush profile · Shape, efficiency, and ball security
How he gets his yards, and how often it works
Success rate
36%103 carriesFumble rate
2.0%2 of 99 carries · 1 lostStuffed
0 or fewer ydsGrind
1–3 ydsChunk
4–9 ydsExplosive
10+ yds4.5 yds/carry on 99 carries · 12% explosive (10+ yds) · 36% success rate.
Situational · Carry shape (PBP, full season)
Yardage DNA
Stuffed (≤0)
Grind (1–3)
Chunk (4–9)
Explosive (10+)
4 seasons under Matt Campbell — 27-23 over that span.
Splits · Per-game
2022 season · 10 games
Home vs Road
| YDS/g | YPC | TD/g | |
|---|---|---|---|
| Home6g | 53.5 | 5.1 | 0.3 |
| Road4g | 31.0 | 4.2 | 0.2 |
First half vs Second half
| YDS/g | YPC | TD/g | |
|---|---|---|---|
| Weeks 1-77g | 56.9 | 5.5 | 0.3 |
| Weeks 8+3g | 15.7 | 2.8 | 0.3 |
Supporting cast · Scheme
Staff and system around the player
Head Coach
Matt Campbell
Pass share
55.3%
478 pass / 387 run
Plays / game
72.1
12 games
Team sack rate
5.6%
504 dropbacks · PBP
Scheme: Pass-leaning.
Player standing · 2022
99 carries and 21 catches in 10 games, about as many touches a game as a typical FBS running back who plays every week.
Recognition
Production · CFB Zeitgeist Score
Former four-star. Now #185 at the position.
How it ended
Four seasons at Iowa State, 713 rushing yards — the college career is complete.
Four or fewer games in the first season, then ten or more.
Coaching lineage · 2019–2022
1 coachPlayed every college season under Matt Campbell.
