Birkie Trail Run
Birkie Trail Run race day weather
Cool start, steady climb ahead
Runners will face a temperature increase from 51°F at the start to 61°F by the finish, with a max wind of 9 mph providing a mix of headwind and crosswind. Humidity will be high at 75%, suggesting a need for hydration and conservative pacing, especially in the latter laps. Despite a slight chance of rain, conditions will remain dry, allowing for optimal running gear choices.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Birkie Trail Run
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Birkie Trail Run route and elevation
The Birkie Trail Run course has about 2,493 ft (760 m) of climbing and 2,515 ft (767 m) of descent, a net drop of about 22 ft (7 m). It is hillier than 92% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 25, with 275 ft (84 m) of climbing and a 2.8% average grade.
Biggest climbs
- Miles 11.2 to 11.7: climbs about 230 ft (71 m).
- Miles 12.9 to 14.6: climbs about 190 ft (58 m).
- Miles 24.3 to 24.8: climbs about 230 ft (71 m).
What the hills cost
- 3:30 on a flat course is about 3:34 here (4 minutes slower).
- 4:00 on a flat course is about 4:05 here (5 minutes slower).
- 4:30 on a flat course is about 4:35 here (5 minutes slower).
Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.
Even-effort splits for a 3:30, 4:00 or 4:30 finish
| Mile | Climb | Descent | 3:30 | 4:00 | 4:30 |
|---|---|---|---|---|---|
| 1 | 128 ft | 28 ft | 8:39 | 9:54 | 11:08 |
| 2 | 102 ft | 81 ft | 8:00 | 9:08 | 10:17 |
| 3 | 123 ft | 29 ft | 8:37 | 9:50 | 11:04 |
| 4 | 146 ft | 129 ft | 7:58 | 9:06 | 10:14 |
| 5 | 42 ft | 144 ft | 7:27 | 8:32 | 9:36 |
| 6 | 107 ft | 48 ft | 8:19 | 9:30 | 10:41 |
| 7 | 78 ft | 115 ft | 7:41 | 8:47 | 9:53 |
| 8 | 38 ft | 173 ft | 7:22 | 8:25 | 9:28 |
| 9 | 108 ft | 24 ft | 8:31 | 9:44 | 10:58 |
| 10 | 83 ft | 129 ft | 7:39 | 8:45 | 9:50 |
| 11 | 110 ft | 74 ft | 8:08 | 9:17 | 10:26 |
| 12 | 252 ft | 179 ft | 8:25 | 9:38 | 10:50 |
| 13 | 52 ft | 228 ft | 7:16 | 8:17 | 9:20 |
| 14 | 129 ft | 26 ft | 8:41 | 9:56 | 11:10 |
| 15 | 116 ft | 73 ft | 8:10 | 9:20 | 10:30 |
| 16 | 102 ft | 39 ft | 8:20 | 9:32 | 10:44 |
| 17 | 149 ft | 119 ft | 8:05 | 9:13 | 10:22 |
| 18 | 47 ft | 141 ft | 7:29 | 8:34 | 9:38 |
| 19 | 101 ft | 57 ft | 8:11 | 9:22 | 10:32 |
| 20 | 96 ft | 106 ft | 7:48 | 8:54 | 10:01 |
| 21 | 38 ft | 169 ft | 7:22 | 8:26 | 9:29 |
| 22 | 91 ft | 43 ft | 8:14 | 9:24 | 10:35 |
| 23 | 98 ft | 117 ft | 7:45 | 8:52 | 9:58 |
| 24 | 88 ft | 86 ft | 7:51 | 8:57 | 10:05 |
| 25 | 275 ft | 129 ft | 9:04 | 10:22 | 11:40 |
| 26 | 24 ft | 274 ft | 7:06 | 8:07 | 9:07 |
| Last 0.2 | 33 ft | 18 ft | 1:52 | 2:08 | 2:24 |
Explore the Birkie Trail Run course with the weather and your pace along the route, or compare it with other races.
Get your personalized Birkie Trail Run race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
About the Birkie Trail Run
The Birkie Trail Run runs through the pine forests of northwest Wisconsin along the American Birkebeiner Trail near Cable, Wisconsin. The marathon covers two laps of a 13.1-mile single-track and gravel loop that starts and finishes at the American Birkebeiner Trailhead. Held each September, the race weekend also includes a half marathon, 10K, Nordic Trek, 5K, and kids' events. The trail shares its name and route with the American Birkebeiner, a well-known Nordic ski marathon held on the same course each winter.