| Year | Distance | Gísli Einar Árnason | Kristbjörn Róbert Sigurjónsson | Ratio |
|---|---|---|---|---|
| 1996 | 20 | 00:54:54🏅 | 01:37:15 | 177% |
| 2011 | 50 | 03:01:01🏅 | 03:01:52 | 100% |
| 2012 | 50 | 03:09:08 | 03:07:17🏅 | 99% |
| 2013 | 50 | 02:32:20🏅 | 02:45:10 | 108% |
| 2014 | 50 | 02:41:50🏅 | 02:50:55 | 106% |
| 2015 | 25 | 01:20:21🏅 | 01:33:56 | 117% |
| 2015 | 50 | 03:20:54🏅 | 03:59:55 | 119% |
| 2016 | 25 | 01:11:28🏅 | 01:24:59 | 119% |
| 2018 | 25 | 01:17:22🏅 | 01:40:47 | 130% |
| 2018 | 50 | 02:53:08🏅 | 03:19:13 | 115% |
| 2019 | 50 | 02:35:53🏅 | 03:01:20 | 116% |
| 11 races | 10 🏅 | 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.