2021 Notre Dame Fighting Irish Fourth Down Conversion Defense Split Stats through 01/10/2022
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 13 | 16 | 9 | 56.25 |
| at Home | 7 | 9 | 6 | 66.67 |
| on Road/Neutral Site | 6 | 7 | 3 | 42.86 |
| in Wins | 11 | 14 | 7 | 50.00 |
| in Losses | 2 | 2 | 2 | 100.00 |
| vs. Conference | 0 | 0 | 0 | - |
| vs. Non-Conference | 13 | 16 | 9 | 56.25 |
| vs. Ranked (AP) | 2 | 2 | 2 | 100.00 |
| vs. Unranked (AP) | 11 | 14 | 7 | 50.00 |
| vs. FBS (I-A) | 13 | 16 | 9 | 56.25 |
| vs. FCS (I-AA) | 0 | 0 | 0 | - |
| vs. FBS Winning | 5 | 5 | 3 | 60.00 |
| vs. FBS Non-Winning | 8 | 11 | 6 | 54.55 |
| vs. FBS Power 5 | 10 | 11 | 5 | 45.45 |
| vs. FBS non-Power 5 | 3 | 5 | 4 | 80.00 |
| in August/September | 4 | 5 | 2 | 40.00 |
| in October | 4 | 3 | 2 | 66.67 |
| in November | 4 | 7 | 4 | 57.14 |
| in December/January | 1 | 1 | 1 | 100.00 |