Alexander Mattison is a 2-year Committee Back for Boise State. Alexander's 2017 season ranks in the 3th percentile nationally by opponent-adjusted EPA per play across 241 plays — a developing rate for the RB.
Part of a rotation — contributes in a complementary role and keeps the featured back fresh.
Players from 2014–2024 matched on EPA efficiency, play volume, and adjusted value tier — not just one metric.
| Player | Team | Yr | Plays | WEPA/play | Line val | Total EPA |
|---|---|---|---|---|---|---|
| Saquon Barkley | Penn State | 2016 | 288 | 0.340 | 3.9 | 97.9 |
| Dalvin Cook | Florida State | 2016 | 292 | 0.340 | 4.3 | 99.3 |
| Breece Hall | Iowa State | 2020 | 301 | 0.340 | 4.5 | 102.3 |
| Eno Benjamin | Arizona State | 2018 | 316 | 0.330 | 4.6 | 104.3 |
| Donnel Pumphrey | San Diego State | 2016 | 344 | 0.320 | 4.2 | 110.1 |
Comps are statistical — efficiency, volume, and value tier all factor in. Style and conference context differ.
| Wk | Opponent | Result | Opp SP+ | Car | Rush Yds | Avg | Rush TD | Rec | Rec Yds | Rec TD | EPA/play |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | vsTroy | W24-13 | 1.6 | 13 | 82 | 6.3 | 1 | 1 | 16 | 0 | -0.28 |
| 2 | @Washington State | L44-47 | 8.6 | 14 | 63 | 4.5 |
Usage = share of team plays (CFBD has no true snap counts).
| Season | Team | Line value | WEPA/play | YoY Δ | Total EPA |
|---|---|---|---|---|---|
| 2017 | Boise State | 1.4 | 0.220 | — | 49.3 |
| 2018 | Boise State | 2.8 | 0.260 | +0.04 | 77.5 |
Chart shows per-game EPA (bars) and rolling 5-game average (line). Season breaks marked with dashed lines. Line value = est. points over replacement per game.
Car 3 · Rush Yds 12 · Avg 4.0 · Rush TD 0
| 1 |
| 3 |
| 12 |
| 0 |
| 0.04 |
| 3 | vsNew Mexico | W28-14 | -12.4 | 6 | 10 | 1.7 | 0 | 1 | 9 | 0 | -0.29 |
| 4 | vsVirginia | L23-42 | 0.8 | 7 | 11 | 1.6 | 0 | 2 | 16 | 0 | -0.08 |
| 6 | @BYU | W24-7 | -7.4 | 29 | 118 | 4.1 | 2 | 2 | 15 | 0 | -0.01 |
| 7 | @San Diego State | W31-14 | 4.5 | 23 | 128 | 5.6 | 1 | 1 | 9 | 0 | 0.19 |
| 8 | vsWyoming | W24-14 | -2.5 | 17 | 91 | 5.4 | 0 | 4 | 41 | 0 | -0.04 |
| 9 | @Utah State | W41-14 | -3.3 | 19 | 110 | 5.8 | 0 | 3 | 28 | 1 | 0.32 |
| 10 | vsNevada | W41-14 | -16.4 | 12 | 64 | 5.3 | 2 | 1 | 14 | 0 | 0.41 |
| 11 | @Colorado State | W59-52 | 3.9 | 23 | 242 | 10.5 | 3 | 3 | 44 | 0 | 0.61 |
| 12 | vsAir Force | W44-19 | -11.0 | 17 | 42 | 2.5 | 0 | 2 | 38 | 0 | -0.17 |
| 13 | @Fresno State | L17-28 | -2.7 | 15 | 63 | 4.2 | 1 | 3 | 37 | 0 | 0.13 |
| 14 | vsFresno State | W17-14 | -2.7 | 14 | 50 | 3.6 | 1 | 2 | 5 | 0 | -0.14 |
| 1 | vsOregon | W38-28 | 9.1 | 3 | 12 | 4.0 | 0 | — | — | — | 0.01 |