Season-final Elo for all four rated units. These are the opponent-strength values every player performance against Grinnell is judged with.
| Season | Rush Offense | Pass Offense | Rush Defense | Pass Defense |
|---|---|---|---|---|
| 2025 | 900 | 906 | 933 | 1070 |
| 2024 | 852 | 948 | 895 | 1052 |
| 2023 | 826 | 963 | 886 | 1042 |
| 2022 | 844 | 958 | 878 | 1080 |
| 2021 | 843 | 998 | 888 | 1056 |
| 2019 | 826 | 1002 | 904 | 1103 |
| 2018 | 840 | 1011 | 908 | 1100 |
| 2017 | 840 | 1018 | 882 | 1079 |
| 2016 | 852 | 1040 | 885 | 1049 |
| 2015 | 822 | 1056 | 954 | 1073 |
| 2014 | 850 | 1076 | 1051 | 1074 |
| 2013 | 872 | 1084 | 1033 | 1084 |
| 2012 | 922 | 1091 | 1076 | 1075 |
| 2011 | 996 | 1114 | 1082 | 1064 |