Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 3:50 finish (an estimate) · starting 7:00 AM May 9. Dark means the sun below civil twilight.
Climbs
3 climbs · 787 ft totalbiggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 3,560ft | +211% |
| USGS lidar, 1 m | 1,145ft | reference |
They differ because a GPS file picks up noise on every wiggle and often takes its heights from a coarse terrain model, while lidar maps the ground itself to about a metre. We sampled this route every 98 ft against USGS 3DEP and counted each rise of 10 ft or more, on Oct 25, 2026. The planner still uses the course file.
Conditions typical race-day weather for May 9 at the start
Typical = the median of 2016–2025 for May 9 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac 1 year of this race
Past editions
On race day it reached 70°F at the start, with a low of 52°.
| Year | Start °F | Rain | Wind |
|---|---|---|---|
| 2026 May 9 | 70°/52° | 0.19in | 12mph |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line.
Reviews what runners who have been there say
No reviews yet — be the first to run it and tell other runners what to expect.
About this course
Thunderbunny Trail Races — 2026 covers 17.1 mi (27.5 km) with 3,560 ft of elevation gain. That is about 208 ft per mile of climbing, and 3,558 ft of descent. The course tops out at 984 ft and bottoms out at 656 ft. The profile has 3 sustained climbs; the biggest is the climb from mi 9.4, +325 ft over 1.1 mi at 5.6% on average (steepest stretch 36%). Race day is May 9, 2026, starting at 7:00 AM; the sun rises at 6:21 AM and sets at 8:30 PM. Typical race-day weather at the start: a high of 70°F and a low of 49°F, with a 49% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
Load the course in the TrailGoat Run Planner for grade-adjusted pacing, climb-by-climb splits, hourly weather and a full hydration & fueling plan — free, no account needed.
Race director? — one line of HTML, always up to date.
Course history
- Oct 13, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
More race courses
- Ice Age Trail 50 — 202748.1 mi · location TBD
- Penyagolosa Trails CSP 106K — 202765.4 mi · location TBD
- Trail 100 Andorra by UTMB Ultra 105K — 202764.1 mi · location TBD
- Dolomiti Extreme Trail 103K — 202762.3 mi · location TBD
- Mozart 100 by UTMB — 202772.0 mi · location TBD
- West Highland Way Race — 202794.5 mi · location TBD
Not seeing the race you came for? — most are live within a day.