| Year | Distance | Gunnar Pétursson | Sigurður Gunnarsson | Ratio |
|---|---|---|---|---|
| 1969 | 21 | 01:21:31 | 01:20:06🏅 | 98% |
| 1971 | 21 | 01:15:58 | 01:14:17🏅 | 98% |
| 1977 | 21 | 01:25:00 | 01:22:32🏅 | 97% |
| 1980 | 21 | 01:25:48🏅 | 01:31:11 | 106% |
| 1982 | 21 | 01:12:19🏅 | 01:12:51 | 101% |
| 1983 | 21 | 01:15:05🏅 | 01:16:05 | 101% |
| 1987 | 21 | 01:13:54 | 01:10:12🏅 | 95% |
| 1988 | 21 | 01:17:31 | 01:10:33🏅 | 91% |
| 1989 | 21 | 01:16:58 | 01:08:54🏅 | 90% |
| 1990 | 21 | 01:24:31 | 01:13:45🏅 | 87% |
| 1991 | 20 | 01:18:04 | 01:11:44🏅 | 92% |
| 1992 | 20 | 01:19:21 | 01:14:38🏅 | 94% |
| 1993 | 20 | 01:12:47 | 01:08:20🏅 | 94% |
| 1994 | 22 | 01:30:03 | 01:18:44🏅 | 87% |
| 1996 | 20 | 01:15:26 | 01:04:07🏅 | 85% |
| 1997 | 20 | 01:23:27 | 01:11:28🏅 | 86% |
| 1998 | 20 | 01:32:57 | 01:14:34🏅 | 80% |
| 1999 | 20 | 01:40:33 | 01:19:12🏅 | 79% |
| 2000 | 20 | 01:41:38 | 01:17:11🏅 | 76% |
| 2002 | 20 | 01:57:35 | 01:18:32🏅 | 67% |
| 2005 | 20 | 02:23:38 | 01:24:58🏅 | 59% |
| 2006 | 20 | 01:46:22 | 01:15:11🏅 | 71% |
| 2008 | 20 | 02:05:20 | 01:20:41🏅 | 64% |
| 2009 | 20 | 02:15:46 | 01:26:57🏅 | 64% |
| 2010 | 20 | 02:21:56 | 01:20:04🏅 | 56% |
| 2011 | 20 | 02:16:19 | 01:16:25🏅 | 56% |
| 26 races | 3 🏅 | 23 🏅 |
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.