| Year | Distance | Jóhannes G. Jónsson | Jóhannes Kárason | Ratio |
|---|---|---|---|---|
| 1985 | 21 | 01:49:29 | 01:21:26🏅 | 74% |
| 1989 | 21 | 01:40:12 | 01:12:10🏅 | 72% |
| 1990 | 21 | 01:59:03 | 01:18:23🏅 | 66% |
| 1993 | 20 | 02:24:50 | 01:08:16🏅 | 47% |
| 4 races | 0 🏅 | 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.