2021 USC Trojans Opponent First Down Split Stats through 01/10/2022
| Split | G | Rush | Pass | Penalty | Total |
|---|---|---|---|---|---|
| All Games | 12 | 98 | 127 | 30 | 255 |
| at Home | 7 | 63 | 87 | 21 | 171 |
| on Road/Neutral Site | 5 | 35 | 40 | 9 | 84 |
| in Wins | 4 | 18 | 43 | 7 | 68 |
| in Losses | 8 | 80 | 84 | 23 | 187 |
| vs. Conference | 9 | 73 | 88 | 23 | 184 |
| vs. Non-Conference | 3 | 25 | 39 | 7 | 71 |
| vs. Ranked (AP) | 3 | 29 | 38 | 9 | 76 |
| vs. Unranked (AP) | 9 | 69 | 89 | 21 | 179 |
| vs. FBS (I-A) | 12 | 98 | 127 | 30 | 255 |
| vs. FCS (I-AA) | 0 | 0 | 0 | 0 | 0 |
| vs. FBS Winning | 7 | 76 | 76 | 19 | 171 |
| vs. FBS Non-Winning | 5 | 22 | 51 | 11 | 84 |
| vs. FBS Power 5 | 9 | 73 | 88 | 23 | 184 |
| vs. FBS non-Power 5 | 3 | 25 | 39 | 7 | 71 |
| in August/September | 4 | 30 | 41 | 11 | 82 |
| in October | 4 | 27 | 45 | 12 | 84 |
| in November | 3 | 36 | 33 | 7 | 76 |
| in December/January | 1 | 5 | 8 | 0 | 13 |