Sean O'Brien 100k/50M/50k
January 30th 2027
Malibu, CA
50 KM |
50 Miles |
100 KM
Sean O'Brien 100k/50M/50k Race Results
50 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 01/31/26 | 107 | 6:19:12 | 4:35:12 |
| 02/22/25 | 80 | 5:23:41 | 4:38:46 |
| 01/27/24 | 91 | 5:29:44 | 4:06:02 |
| 01/28/23 | 99 | 6:24:12 | 4:44:50 |
| 02/02/19 | Race Cancelled | ||
| 02/03/18 | 182 | 5:22:42 | 3:57:23 |
| 02/04/17 | 185 | 5:11:54 | 4:40:29 |
| 02/06/16 | 139 | 5:01:23 | 4:39:10 |
| 02/07/15 | 198 | 5:32:39 | 4:25:58 |
| 02/01/14 | 151 | 5:22:58 | 4:15:09 |
50 Miles
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 01/31/26 | 69 | 10:18:11 | 9:24:11 |
| 02/22/25 | 40 | 9:41:11 | 7:22:41 |
| 01/27/24 | 55 | 10:37:37 | 9:05:10 |
| 01/28/23 | 67 | 9:54:30 | 8:25:30 |
| 02/05/22 | 56 | 9:30:02 | 9:00:56 |
| 10/23/21 | 37 | 12:17:13 | 9:16:10 |
| 02/08/20 | 156 | 10:18:32 | 7:05:32 |
| 02/02/19 | Race Cancelled | ||
| 02/03/18 | 110 | 9:29:42 | 8:14:48 |
| 02/04/17 | 89 | 9:37:11 | 7:47:10 |
| 02/06/16 | 62 | 9:38:58 | 8:48:39 |
| 02/07/15 | 101 | 9:43:59 | 7:35:10 |
| 02/01/14 | 151 | 7:38:16 | 6:23:17 |
100 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 01/31/26 | 84 | 12:04:33 | 11:04:32 |
| 02/22/25 | 71 | 11:18:34 | 10:32:57 |
| 01/27/24 | 73 | 11:59:20 | 10:00:01 |
| 01/28/23 | 91 | 11:58:18 | 9:02:03 |
| 02/05/22 | 62 | 11:47:05 | 9:30:02 |
| 10/23/21 | 30 | 11:58:10 | 10:11:53 |
| 02/08/20 | 127 | 10:59:55 | 10:10:33 |
| 02/02/19 | Race Cancelled | ||
| 02/03/18 | 134 | 9:38:17 | 8:48:04 |
| 02/04/17 | 137 | 9:56:15 | 8:24:35 |
| 02/06/16 | 72 | 10:27:02 | 9:37:22 |
| 02/07/15 | 93 | 9:51:27 | 8:41:41 |