Season-final Elo for all four rated units. These are the opponent-strength values every player performance against Northern Iowa is judged with.
| Season | Rush Offense | Pass Offense | Rush Defense | Pass Defense |
|---|---|---|---|---|
| 2025 | 1153 | 1222 | 1204 | 1134 |
| 2024 | 1222 | 1348 | 1305 | 1128 |
| 2023 | 1200 | 1452 | 1524 | 1208 |
| 2022 | 1238 | 1422 | 1544 | 1272 |
| 2021 | 1126 | 1318 | 1612 | 1320 |
| 2020 | 1058 | 1212 | 1578 | 1362 |
| 2019 | 1055 | 1233 | 1564 | 1324 |
| 2018 | 1126 | 1266 | 1476 | 1200 |
| 2017 | 1192 | 1216 | 1512 | 1248 |
| 2016 | 1276 | 1126 | 1470 | 1294 |
| 2015 | 1377 | 1118 | 1474 | 1276 |
| 2014 | 1316 | 1161 | 1449 | 1270 |
| 2013 | 1302 | 1206 | 1340 | 1218 |
| 2012 | 1322 | 1290 | 1296 | 1185 |
| 2011 | 1346 | 1230 | 1395 | 1200 |
| 2010 | 1380 | 1256 | 1428 | 1158 |
| 2009 | 1370 | 1296 | 1408 | 1266 |
| 2008 | 1350 | 1270 | 1392 | 1228 |
| 2007 | 1356 | 1308 | 1308 | 1194 |
| 2006 | 1308 | 1204 | 1216 | 1188 |
| 2005 | 1208 | 1176 | 1192 | 1196 |
| 2004 | 1187 | 1188 | 1172 | 1192 |
| 2003 | 1156 | 1174 | 1145 | 1178 |
| 2002 | 1160 | 1159 | 1150 | 1194 |
| 2001 | 1176 | 1166 | 1152 | 1199 |