Mt. Si Relay & Trail Runs

The Half Marathon, Marathon, 50K and 50M are run on the scenic Snoqualmie Valley Trail with the Marathon, 50K and 50M continuing to run east on the John Wayne Pioneer Trail. The trail is old railroad grade with a gentle climb from North Bend to Rattlesnake Lake.

Additional Distances

This event also has the following sub ultra distances

26.2 Miles 13.1 Miles

Results

Date Finishers Top Result (M) Top Result (F)
05/04/25 21 7:58:53 8:36:06
04/21/24 21 7:39:04 9:05:09
04/23/23 24 6:17:28 7:59:03
04/24/22 25 7:13:46 7:41:47
04/26/20 Race Cancelled
04/28/19 21 7:37:07 8:18:56
04/29/18 30 6:37:13 8:15:33
04/23/17 29 6:49:35 7:31:22
04/24/16 29 7:05:05 7:46:01
04/26/15 68 6:10:30 8:22:10
04/27/14 41 6:54:11 9:01:19
04/28/13 36 6:41:37 6:33:37
04/22/12 39 7:10:33 8:47:28
04/10/11 43 7:09:13 7:14:07
04/11/10 46 5:54:15 7:34:40
04/19/09 48 6:17:10 7:09:12
04/13/08 50 6:39:05 7:56:47
04/22/07 54 6:09:07 7:39:37
04/23/06 48 6:18:05 7:20:35
04/17/05 38 6:31:25 7:11:02
04/14/04 37 6:29:34 6:55:13
04/27/03 27 6:04:00 7:15:47
04/14/02 24 6:56:42 7:49:42
04/08/01 26 5:54:37 8:41:11
04/11/99 22 6:52:35 8:10:03
Date Finishers Top Result (M) Top Result (F)
05/04/25 22 3:16:31 4:39:55
04/21/24 40 4:20:13 5:01:07
04/23/23 38 3:34:34 4:07:34
04/24/22 41 4:16:45 4:43:59
04/26/20 Race Cancelled
04/28/19 57 3:37:48 4:39:42
04/29/18 64 3:41:07 3:57:55
04/23/17 59 3:50:42 4:42:48
04/24/16 45 3:53:26 4:29:04
04/26/15 87 3:58:50 4:29:02
04/27/14 72 3:42:45 4:28:06
04/28/13 61 3:41:48 3:54:53
04/22/12 64 3:36:08 3:57:13
04/10/11 79 3:45:05 4:37:12
04/11/10 64 3:28:37 3:59:05
04/19/09 66 4:00:45 4:10:18
04/13/08 56 3:52:30 3:53:09
04/22/07 54 3:39:10 4:16:05
04/23/06 49 3:46:30 4:10:15
04/17/05 41 3:19:12 4:33:47
04/14/04 29 3:27:03 4:47:28
04/27/03 25 4:00:50 4:56:12

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