Point-to-point-feeling but starts and finishes at the same location: a stem out from the ski area base over Mount Werner and down Fish Creek Falls Trail to Long Lake, then Continental Divide/Buffalo Pass roads to Summit Lake and Billy's Rabbit Hole, descending Spring Creek Trail through downtown Steamboat to Olympian Hall (roughly halfway); a ~12.7 mile loop around Emerald Mountain (Blackmere/Lane of Pain/Ridge Road/Stairway to Heaven) that returns to Olympian Hall; then back up the same stem in reverse (Dry Lake, Billy's Rabbit Hole, Summit Lake, Long Lake via the Wyoming/Continental Divide Trail, Mount Werner) to the finish at the ski area base. Runs as two divisions from the same start/finish: Hares (1 PM start, prize-money division, 30-hour cutoff) and Tortoises (9 AM start, 36-hour cutoff, pacers allowed).
Course structure does not cleanly fit one schema course_type: after the stem out (Start-Olympian Hall, with a Fish Creek Falls out-and-back spur early on), the course runs a genuine ~12.7 mi loop around Emerald Mountain that starts and ends at Olympian Hall (the midpoint, not the far end), then reverses back down the same stem to the finish -- closest fit is 'lollipop' but the loop sits mid-course rather than at the outer end, and distance_miles is NOT stem+loop*1 in the usual sense. About half the course sits at or near 10,000 ft (Continental Divide / Buffalo Pass / Wyoming Trail); the nominal high point, 10,557 ft, is on the Wyoming Trail between Summit Lake and Long Lake on the return leg. The race's own FAQ says GPS devices typically read the course at about 103.5 miles versus the published ~101.8-101.5; the race declines to wheel the course and treats trail-distance precision as beside the point. No headphones are allowed between Spring Creek Trailhead and Olympian Hall (through town, both directions) even though headphones_allowed=true generally. Bears (including sows with cubs) and mountain lions are an explicit hazard on the Emerald Mountain / Blackmere section, run mostly in the dark. The race reports more 100-mile DNFs from unexpected overnight cold than any other cause.
Two ultramarathons (50 mile and 100 mile) starting and finishing at the base of the Steamboat Ski Area in Steamboat Springs, Colorado, on trails of the Routt National Forest crossing Buffalo Pass and running past Fish Creek Falls, Long Lake and (100 mile only) Emerald Mountain and downtown Steamboat. The 100 mile race runs two divisions from different start times: Hares (competing for prize money, 1 PM start, 30-hour cutoff, no pacers) and Tortoises (9 AM start, 36-hour cutoff, pacers allowed from designated points).
The Run Rabbit Run 50 began in 2007, started by Fred Abramowitz as a charity run benefiting northern Colorado kids and causes; Betsy Kalmeyer designed the original 50 mile course (since changed). Paul Sachs became co-race director in 2008. The 100 mile race, run in Hare/Tortoise divisions and offering the highest purse of any 100-mile trail ultra in the world, began in 2012. Since 2012 the race has donated almost $700,000 to northern Colorado non-profits.
| Mile | Station | Cutoff | Crew | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 |
Start (Ski Area Base)
6,886 ft
|
? | ● | ● | · | ? | 5.40 |
| 5.40 |
Mount Werner
10,372 ft
|
3:30pm | · | · | · | ? | 12.30 |
| 17.70 |
Fish Creek Falls Trailhead
6,952 ft
|
6:00pm | ● | · | · | ? | 6.60 |
| 24.30 |
Long Lake
9,850 ft
|
? | · | · | · | ? | 5.80 |
| 30.10 |
Summit Lake
10,316 ft
|
? | ● | ● | · | ? | 4.20 |
| 34.30 |
Billy's Rabbit Hole
10,040 ft
|
? | · | · | · | ? | 10.20 |
| 44.50 |
Dry Lake
8,272 ft
|
? | ● | · | ● | ? | 6.70 |
| 51.20 |
Olympian Hall
6,669 ft
|
2:30am | ● | ● | ● | ? | 3.20 |
| 54.40 |
Lane of Pain
8,180 ft
|
? | · | · | · | ? | 3.70 |
| 58.10 |
Lane of Pain
8,180 ft
|
? | · | · | · | ? | 5.80 |
| 63.90 |
Olympian Hall
6,669 ft
|
7:45am | ● | ● | ● | ? | 6.90 |
| 70.80 |
Dry Lake
8,272 ft
|
10:00am | ● | · | ● | ? | 5.80 |
| 76.60 |
Billy's Rabbit Hole
10,040 ft
|
? | · | · | · | ? | 4.20 |
| 80.80 |
Summit Lake
10,316 ft
|
3:00pm | ● | ● | ● | ? | 8.20 |
| 89.00 |
Long Lake
9,850 ft
|
6:30pm | · | · | · | ? | 6.80 |
| 95.80 |
Mount Werner
10,372 ft
|
8:00pm | · | · | · | ? | 6.00 |
| 101.80 |
Finish (Ski Area Base)
6,886 ft
|
9:00pm | ● | ● | ● | ? | ? |
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