| Year | Distance | Unnsteinn Jónsson | Einar Birkir Sveinbjörnsson | Ratio |
|---|---|---|---|---|
| 2014 | 50 | 03:38:32 | 02:57:38🏅 | 81% |
| 2015 | 50 | 04:05:26 | 04:02:13🏅 | 99% |
| 2016 | 50 | 03:42:25 | 03:24:46🏅 | 92% |
| 2017 | 50 | 03:32:00 | 03:09:05🏅 | 89% |
| 2023 | 50 | 03:33:56 | 03:08:51🏅 | 88% |
| 2024 | 50 | 04:27:34 | 04:18:52🏅 | 97% |
| 6 races | 0 🏅 | 6 🏅 |
Here you can find a list of other arch-rivals, that is those with most races in common (same year and distance). Click to see detailed comparison.