| Year | Distance | Rósmundur Númason | Hallgrímur Magnús Sigurjónsson | Ratio |
|---|---|---|---|---|
| 2004 | 20 | 02:00:58 | 01:55:54🏅 | 96% |
| 2005 | 20 | 01:43:12 | 01:39:12🏅 | 96% |
| 2018 | 50 | 04:18:04 | 04:11:45🏅 | 98% |
| 2021 | 50 | 06:05:06 | 05:47:31🏅 | 95% |
| 2024 | 25 | 02:26:13🏅 | 02:34:34 | 106% |
| 5 races | 1 🏅 | 4 🏅 |
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.