| Year | Distance | Þórhallur Ásmundsson | Þröstur Jóhannesson | Ratio |
|---|---|---|---|---|
| 1996 | 20 | 01:05:26 | 01:01:52🏅 | 95% |
| 1998 | 20 | 01:12:32🏅 | 01:19:52 | 110% |
| 2006 | 50 | 03:06:50🏅 | 03:10:51 | 102% |
| 2009 | 50 | 03:31:04 | 03:06:36🏅 | 88% |
| 2010 | 50 | 03:42:33 | 03:13:15🏅 | 87% |
| 5 races | 2 🏅 | 3 🏅 |
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.