| Year | Distance | Gunnar Pétursson | Nanný Arna Guðmundsdóttir | Ratio |
|---|---|---|---|---|
| 2004 | 20 | 02:36:36🏅 | 02:39:46 | 102% |
| 2007 | 20 | 01:51:32🏅 | 02:06:24 | 113% |
| 2010 | 20 | 02:21:56 | 01:54:22🏅 | 81% |
| 2012 | 20 | 02:24:43 | 02:01:20🏅 | 84% |
| 4 races | 2 🏅 | 2 🏅 |
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.