Siaosi Mariner is a Slot Specialist WR for Utah State. Siaosi's 2019 season ranks in the 100th percentile nationally by opponent-adjusted EPA per play across 84 plays — a elite rate for the WR.
The offense's primary passing-down weapon — routes, separation, and reliability on 3rd down define this role.
| Wk | Opponent | Result | Opp SP+ | Rec | Rec Yds | Avg | Rec TD | Long | EPA/play |
|---|---|---|---|---|---|---|---|---|---|
| 1 | @Wake Forest | L35-38 | 2.0 | 8 | 118 | 14.8 | 1 | 28 | 1.56 |
| 2 | vsStony Brook | W62-7 | — | 5 | 73 | 14.6 | 1 | 29 | 1.39 |
| 4 | @San Diego State | W23-17 | 2.0 | 7 | 74 | 10.6 | 0 | 16 |
Usage = share of team plays (CFBD has no true snap counts).
Rec 7 · Rec Yds 113 · Avg 16.1 · Rec TD 2
| 0.71 |
| 5 | vsColorado State | W34-24 | -3.9 | 2 | 40 | 20.0 | 0 | 34 | 0.43 |
| 6 | @LSU | L6-42 | 33.1 | 2 | 45 | 22.5 | 0 | 35 | 1.68 |
| 8 | vsNevada | W36-10 | -12.3 | 2 | 53 | 26.5 | 0 | 48 | 0.34 |
| 9 | @Air Force | L7-31 | 12.1 | 3 | 38 | 12.7 | 1 | 27 | 0.92 |
| 10 | vsBYU | L14-42 | 1.3 | 5 | 86 | 17.2 | 1 | 32 | 0.91 |
| 11 | @Fresno State | W37-35 | -4.0 | 11 | 103 | 9.4 | 2 | 16 | 0.86 |
| 12 | vsWyoming | W26-21 | -1.1 | 4 | 123 | 30.8 | 1 | 80 | 1.89 |
| 13 | vsBoise State | L21-56 | 8.1 | 4 | 66 | 16.5 | 0 | 37 | 0.18 |
| 14 | @New Mexico | W38-25 | -17.0 | 3 | 55 | 18.3 | 1 | 35 | 0.87 |
| 1 | vsKent State | L41-51 | -10.2 | 7 | 113 | 16.1 | 2 | 25 | 1.17 |