2009 Michigan State Spartans Fourth Down Conversion Defense Split Stats through 01/07/2010
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 13 | 16 | 9 | 56.25 |
| at Home | 7 | 9 | 5 | 55.56 |
| on Road/Neutral Site | 6 | 7 | 4 | 57.14 |
| in Wins | 6 | 9 | 4 | 44.44 |
| in Losses | 7 | 7 | 5 | 71.43 |
| vs. Conference | 8 | 7 | 2 | 28.57 |
| vs. Non-Conference | 5 | 9 | 7 | 77.78 |
| vs. Ranked (AP) | 5 | 6 | 4 | 66.67 |
| vs. Unranked (AP) | 8 | 10 | 5 | 50.00 |
| vs. FBS (I-A) | 12 | 14 | 7 | 50.00 |
| vs. FCS (I-AA) | 1 | 2 | 2 | 100.00 |
| vs. FBS Winning | 6 | 8 | 4 | 50.00 |
| vs. FBS Non-Winning | 6 | 6 | 3 | 50.00 |
| vs. BCS AQ | 10 | 11 | 5 | 45.45 |
| vs. BCS non-AQ | 2 | 3 | 2 | 66.67 |
| in August/September | 4 | 5 | 4 | 80.00 |
| in October | 5 | 5 | 2 | 40.00 |
| in November | 3 | 3 | 1 | 33.33 |
| in December/January | 1 | 3 | 2 | 66.67 |