WELCOME

We developed Turnsheet to equip runners of all abilities with the information they need to find and conquer the right trail race. From past results to future weather forecasts, we have a wealth of knowledge to share — all designed to give you an edge on your goals.

We hope Turnsheet will help make success as close as possible to a foregone conclusion, so every runner finishes their next event fired up for another one.

 

 

Start Exploring

Ready to explore Turnsheet? The best place to start is with our race difficulty ranking. We combined a variety of course-related data to quantitatively measure and rank the difficulty of North American 100-mile races. Here are the results of the races we’ve analyzed thus far.

 
Rank Race Score
1 Hardrock 96.0%
2 Ouray 95.4%
3 Whistler Alpine 84.7%
4 Teanaway Country 83.5%
5 Wyoming Range 83.4%
6 Wasatch Front 82.3%
7 High Lonesome 79.0%
8 Plain 77.2%
9 Fat Dog 77.1%
10 Cruel Jewel 74.3%
11 Scout Mountain 73.4%
12 Old Cascadia 72.8%
13 Bear 71.6%
14 Moose 70.6%
15 Cascade Crest 70.1%
16 Pine to Palm 68.4%
17 Bighorn 67.5%
18 Run Rabbit Run 65.2%
19 Orcas Island 64.7%
20 Grindstone 62.6%
21 Tahoe Rim Trail 60.8%
22 Angeles Crest 59.9%
23 Leadville Trail 59.7%
24 IMTUF 58.3%
25 HURT 57.7%
26 Bryce Canyon 56.7%
27 Mogollon Monster 53.0%
28 Eastern States 52.0%
29 Western States 52.0%
30 Black Hills 51.1%
31 MMT 47.1%
32 San Diego 44.7%
33 Zion 38.6%
34 Mountain Lakes 35.1%
35 Pinhoti 34.8%
36 Uwharrie 34.2%
37 Badger Mountain 33.2%
38 Vermont 32.6%
39 Superior 31.1%
40 Arkansas Traveller 26.5%
41 Rio Del Lago 25.1%
42 Mohican 22.8%
43 Yeti 18.8%
44 Burning River 17.6%
45 Javelina Jundred 17.5%
46 Kettle Moraine 16.8%
47 Hallucination 14.5%
48 Rocky Raccoon 12.8%
49 Indiana 12.4%
50 Umstead 9.2%
51 Tunnel Hill 7.6%
52 Brazos Bend 2.0%
53 Oil Creek 1.0%