Polebridge, MT
Join us!
The Le Grizz Ultramarathon is an undulating gravel road course with one short section of pavement at the start/end around the Mercantile. Racers will find themselves surrounded by the peaks of Southern British Columbia and Glacier National Park and greeted by world famous Aid Station accomodations.
The course meanders along the North Fork of the Flathead River:
- Distance: approximately 50.1 miles
- Start/End: Polebridge Mercantile
- Course turn-around points: Trail Creek Road Jct. & Glacier View/Demers Ridge trailhead area
- Elevation Gain: approximately 2,600 feet
- 90% gravel road
- 10% paved road
Upcoming Races
Oct 11 2025
50 Miles
2,600
2,600
ft.
Out and Back
Course
9 Aid
Stations
2
Elevation Rating
Rolling, ~2500 feet in 50 miles
3
Surface Rating
Some rocks, root, and/or ruts
Results
50 Miles
View course top times| Date | Finishers | Top Result (M) | Top Result (F) |
|---|---|---|---|
| 10/12/24 | 72 | 6:37:50 | 6:33:04 |
| 10/14/23 | 46 | 7:09:52 | 8:45:05 |
| 10/08/22 | 49 | 5:21:19 | 7:25:34 |
| 10/09/21 | 56 | 5:20:00 | 6:58:33 |
| 10/10/20 | 57 | 5:45:13 | 7:57:33 |
| 10/12/19 | 51 | 7:12:26 | 7:19:53 |
| 10/13/18 | 58 | 6:17:53 | 7:08:19 |
| 10/14/17 | 45 | 6:28:14 | 7:39:17 |
| 10/08/16 | 57 | 7:14:08 | 6:57:00 |
| 10/10/15 | 63 | 6:24:46 | 6:54:44 |
| 10/11/14 | 85 | 6:14:47 | 7:11:44 |
| 10/12/13 | 94 | 6:24:10 | 7:17:56 |
| 10/13/12 | 98 | 5:58:45 | 6:50:46 |
| 10/08/11 | 74 | 5:57:39 | 7:59:22 |
| 10/09/10 | 87 | 6:19:02 | 7:26:44 |
| 10/10/09 | 84 | 6:28:48 | 8:12:35 |
| 10/11/08 | 83 | 6:21:28 | 7:18:42 |
| 10/13/07 | 85 | 6:36:01 | 6:40:33 |
| 10/14/06 | 69 | 6:26:52 | 8:00:41 |
| 10/08/05 | 59 | 6:26:17 | 7:48:26 |
| 10/09/04 | 53 | 6:32:45 | 7:44:36 |
| 10/11/03 | 68 | 6:36:05 | 7:54:24 |
| 10/12/02 | 84 | 6:27:02 | 7:08:28 |
| 10/13/01 | 52 | 6:12:59 | 7:32:39 |
| 10/14/00 | 50 | 6:17:17 | 7:24:56 |
| 10/09/99 | 74 | 5:47:22 | 7:29:12 |
| 10/10/98 | 62 | 6:02:42 | 8:02:17 |
| 10/11/97 | 52 | 5:55:30 | 8:23:46 |
| 10/12/96 | 73 | 5:34:38 | 7:38:47 |
| 10/14/95 | 69 | 5:51:02 | 7:08:58 |
| 10/08/94 | 68 | 5:38:26 | 7:22:53 |
| 10/09/93 | 77 | 5:51:21 | 7:25:23 |
| 10/10/92 | 51 | 6:00:37 | 7:58:30 |
| 10/12/91 | 63 | 5:53:57 | 7:15:31 |
| 10/13/90 | 66 | 6:10:21 | 7:23:51 |
| 10/14/89 | 70 | 5:56:28 | 7:16:41 |
| 10/08/88 | 45 | 5:44:54 | 7:04:38 |
| 10/10/87 | 37 | 5:58:37 | 6:58:18 |
| 10/11/86 | 22 | 5:50:56 | 7:05:37 |
| 10/12/85 | 21 | 6:13:35 | 6:37:53 |
| 10/13/84 | 17 | 6:35:57 | 7:07:56 |
| 10/08/83 | 22 | 5:55:49 | 7:16:16 |
| 10/09/82 | 16 | 6:36:23 | 7:21:11 |
