

Xavier Johnson is a Explosive Back for South Alabama. Xavier's 2015 season ranks in the 5th percentile nationally by opponent-adjusted EPA per play across 145 plays — a developing rate for the RB.
Elite per-carry efficiency — breaks big runs and creates chunk plays at a top rate while in a limited role.
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 |
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 | vsGardner-Webb | W33-23 | — | 7 | 121 | 17.3 | 1 | 1 | 56 | 1 | 1.59 |
| 2 | @Nebraska | L9-48 | 11.1 | 7 | 28 | 4.0 | 0 | 3 | 22 | 0 | -0.05 |
| 3 | @San Diego State | W34-27 | 8.0 | 19 |
Usage = share of team plays (CFBD has no true snap counts).
Car 18 · Rush Yds 112 · Avg 6.2 · Rush TD 0
| 142 |
| 7.5 |
| 2 |
| 1 |
| -3 |
| 0 |
| 0.23 |
| 4 | vsNC State | L13-63 | 9.6 | 11 | 29 | 2.6 | 0 | — | — | — | -0.25 |
| 5 | @Troy | W24-18 | -7.0 | 20 | 91 | 4.6 | 1 | — | — | — | 0.01 |
| 7 | vsArkansas State | L31-49 | 0.5 | 2 | -1 | -0.5 | 0 | 1 | -6 | 0 | -0.50 |
| 8 | @Texas State | L18-36 | -15.5 | 9 | 93 | 10.3 | 0 | — | — | — | 0.09 |
| 10 | vsIdaho | W52-45 | -12.2 | 9 | 148 | 16.4 | 1 | — | — | — | 1.08 |
| 11 | vsLouisiana | W32-25 | -7.1 | 23 | 118 | 5.1 | 2 | — | — | — | 0.14 |
| 12 | @Georgia State | L10-24 | -6.7 | 10 | 46 | 4.6 | 0 | 2 | 10 | 0 | 0.10 |
| 13 | @Georgia Southern | L17-55 | 7.3 | 10 | 29 | 2.9 | 0 | 1 | 3 | 0 | -0.06 |
| 14 | vsApp State | L27-34 | 7.9 | 18 | 112 | 6.2 | 0 | — | — | — | 0.08 |