| Year | Distance | Rósmundur Númason | Sigrún María Bjarnadóttir | Ratio |
|---|---|---|---|---|
| 2015 | 50 | 04:44:41🏅 | 05:02:09 | 106% |
| 2018 | 50 | 04:18:04 | 04:12:27🏅 | 98% |
| 2019 | 50 | 03:29:29🏅 | 03:56:54 | 113% |
| 2021 | 50 | 06:05:06🏅 | 06:19:36 | 104% |
| 4 races | 3 🏅 | 1 🏅 |
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.