Result History for Dag Seymour
| Race Name | Race Date | Finish Time | Overall Place | Gender Place | Age | Age Group | Age Group Place |
| 1.2 Mile Non-Wetsuit | 2025-09-07 | 00:44:03 | 40/52 | 16/19 | 66 | 60 - 69 | 2/2 |
| 2.4 Mile Non-Wetsuit | 2012-08-04 | 00:57:40 | 25/52 | 12/22 | 53 | 50 - 59 | 1/3 |
| 2.4 Mile Non-Wetsuit | 2010-08-15 | 00:59:43 | 11/59 | 4/24 | 51 | 50 - 59 | 2/6 |
| 2.4 Mile Non-Wetsuit | 2009-08-16 | 01:05:16 | 27/55 | 10/23 | 50 | 50 - 59 | 1/7 |
| 2.4 Mile Non-Wetsuit | 2008-08-10 | 00:54:54 | 8/58 | 3/23 | 49 | 40 - 49 | 1/6 |
| 10K | 2006-08-12 | 02:49:51 | 25/83 | 18/48 | 47 | 40 - 49 | 8/12 |
| 2.4 Mile Wetsuit | 2005-08-14 | 01:02:08 | 5/47 | 1/15 | 46 | 40 - 49 | 1/2 |