Season-final Elo for all four rated units. These are the opponent-strength values every player performance against Iowa is judged with.
| Season | Rush Offense | Pass Offense | Rush Defense | Pass Defense |
|---|---|---|---|---|
| 2026 | 1457 | 1154 | 1560 | 1485 |
| 2025 | 1451 | 1154 | 1554 | 1484 |
| 2024 | 1416 | 1159 | 1560 | 1464 |
| 2023 | 1294 | 1149 | 1586 | 1484 |
| 2022 | 1304 | 1220 | 1572 | 1442 |
| 2021 | 1334 | 1246 | 1546 | 1402 |
| 2020 | 1355 | 1316 | 1518 | 1424 |
| 2019 | 1312 | 1340 | 1478 | 1412 |
| 2018 | 1350 | 1314 | 1466 | 1385 |
| 2017 | 1344 | 1296 | 1424 | 1371 |
| 2016 | 1364 | 1302 | 1453 | 1344 |
| 2015 | 1334 | 1339 | 1448 | 1346 |
| 2014 | 1295 | 1322 | 1421 | 1364 |
| 2013 | 1305 | 1313 | 1468 | 1358 |
| 2012 | 1268 | 1324 | 1444 | 1306 |
| 2011 | 1296 | 1380 | 1471 | 1348 |
| 2010 | 1308 | 1362 | 1512 | 1370 |
| 2009 | 1298 | 1323 | 1504 | 1380 |
| 2008 | 1348 | 1300 | 1506 | 1330 |
| 2007 | 1294 | 1336 | 1462 | 1278 |
| 2006 | 1332 | 1388 | 1467 | 1284 |
| 2005 | 1307 | 1382 | 1498 | 1294 |
| 2004 | 1254 | 1360 | 1500 | 1334 |
| 2003 | 1362 | 1306 | 1472 | 1288 |
| 2002 | 1334 | 1345 | 1434 | 1264 |
| 2001 | 1270 | 1316 | 1361 | 1266 |
| 2000 | 1212 | 1276 | 1296 | 1252 |