| Year | Distance | Birkir Þór Stefánsson | Helgi Reynir Árnason | Ratio |
|---|---|---|---|---|
| 2018 | 50 | 03:17:52🏅 | 03:18:05 | 100% |
| 2019 | 50 | 02:44:59🏅 | 02:45:18 | 100% |
| 2021 | 50 | 04:00:00🏅 | 04:23:31 | 110% |
| 2023 | 50 | 02:40:23 | 02:31:26🏅 | 94% |
| 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.