Season-final Elo for all four rated units. These are the opponent-strength values every player performance against Illinois Col. is judged with.
| Season | Rush Offense | Pass Offense | Rush Defense | Pass Defense |
|---|---|---|---|---|
| 2025 | 1096 | 1251 | 1216 | 1192 |
| 2024 | 1136 | 1257 | 1176 | 1153 |
| 2023 | 1068 | 1195 | 1164 | 1178 |
| 2022 | 1014 | 1116 | 1100 | 1154 |
| 2021 | 1010 | 1133 | 1092 | 1110 |
| 2020 | 999 | 1147 | 1112 | 1130 |
| 2019 | 1008 | 1144 | 1108 | 1128 |
| 2018 | 1024 | 1160 | 1122 | 1107 |
| 2017 | 1036 | 1148 | 1080 | 1117 |
| 2016 | 1102 | 1160 | 1080 | 1109 |
| 2015 | 1140 | 1164 | 1092 | 1110 |
| 2014 | 1186 | 1150 | 1130 | 1113 |
| 2013 | 1199 | 1118 | 1096 | 1104 |
| 2012 | 1127 | 1104 | 1082 | 1090 |