| Year | Distance | Gunnar Pétursson | Ólafur Th. Árnason | Ratio |
|---|---|---|---|---|
| 1997 | 20 | 01:23:27 | 01:10:02🏅 | 84% |
| 1998 | 20 | 01:32:57 | 01:12:29🏅 | 78% |
| 1999 | 20 | 01:40:33 | 01:11:27🏅 | 71% |
| 2000 | 20 | 01:41:38 | 01:10:14🏅 | 69% |
| 2002 | 20 | 01:57:35 | 01:06:04🏅 | 56% |
| 2008 | 20 | 02:05:20 | 01:14:43🏅 | 60% |
| 2011 | 20 | 02:16:19 | 01:09:54🏅 | 51% |
| 7 races | 0 🏅 | 7 🏅 |
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.