2009 Illinois Fighting Illini Third Down Conversion Defense Split Stats through 01/07/2010
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 12 | 167 | 75 | 44.91 |
| at Home | 6 | 85 | 36 | 42.35 |
| on Road/Neutral Site | 6 | 82 | 39 | 47.56 |
| in Wins | 3 | 45 | 20 | 44.44 |
| in Losses | 9 | 122 | 55 | 45.08 |
| vs. Conference | 8 | 108 | 47 | 43.52 |
| vs. Non-Conference | 4 | 59 | 28 | 47.46 |
| vs. Ranked (AP) | 3 | 36 | 19 | 52.78 |
| vs. Unranked (AP) | 9 | 131 | 56 | 42.75 |
| vs. FBS (I-A) | 11 | 151 | 68 | 45.03 |
| vs. FCS (I-AA) | 1 | 16 | 7 | 43.75 |
| vs. FBS Winning | 6 | 81 | 39 | 48.15 |
| vs. FBS Non-Winning | 5 | 70 | 29 | 41.43 |
| vs. BCS AQ | 10 | 137 | 62 | 45.26 |
| vs. BCS non-AQ | 1 | 14 | 6 | 42.86 |
| in August/September | 3 | 45 | 21 | 46.67 |
| in October | 5 | 67 | 29 | 43.28 |
| in November | 3 | 41 | 19 | 46.34 |
| in December/January | 1 | 14 | 6 | 42.86 |