Season-final Elo for all four rated units. These are the opponent-strength values every player performance against Southern Ill. is judged with.
| Season | Rush Offense | Pass Offense | Rush Defense | Pass Defense |
|---|---|---|---|---|
| 2025 | 1335 | 1291 | 1230 | 1216 |
| 2024 | 1214 | 1258 | 1334 | 1190 |
| 2023 | 1132 | 1316 | 1442 | 1257 |
| 2022 | 1232 | 1388 | 1290 | 1240 |
| 2021 | 1312 | 1372 | 1191 | 1255 |
| 2020 | 1380 | 1313 | 1193 | 1221 |
| 2019 | 1422 | 1246 | 1256 | 1213 |
| 2018 | 1338 | 1258 | 1180 | 1147 |
| 2017 | 1228 | 1335 | 1198 | 1143 |
| 2016 | 1162 | 1400 | 1209 | 1098 |
| 2015 | 1275 | 1304 | 1204 | 1138 |
| 2014 | 1200 | 1192 | 1321 | 1149 |
| 2013 | 1224 | 1155 | 1362 | 1128 |
| 2012 | 1266 | 1092 | 1366 | 1185 |
| 2011 | 1345 | 1147 | 1334 | 1168 |
| 2010 | 1350 | 1148 | 1285 | 1238 |
| 2009 | 1395 | 1166 | 1314 | 1232 |
| 2008 | 1374 | 1192 | 1292 | 1225 |
| 2007 | 1432 | 1271 | 1246 | 1196 |
| 2006 | 1460 | 1160 | 1264 | 1216 |
| 2005 | 1434 | 1169 | 1258 | 1226 |
| 2004 | 1440 | 1176 | 1252 | 1218 |
| 2003 | 1338 | 1093 | 1182 | 1180 |
| 2002 | 1290 | 1079 | 1111 | 1144 |
| 2001 | 1206 | 1100 | 1117 | 1176 |