Char Kuperstein
ID 481810
Born : 1982 Cat. W40 Ultrarunner since 2013 USA
44
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
3
Countries visited ?NZLNew ZealandSUISwitzerlandUSAUnited States
55,1%
Rank quotient ?This runner's calculation uses 44 eligible race(s): Σ(rank − 1) = 7 194; Σ finishers = 13 059. 7 194 / 13 059 × 100 = 55.09%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed44
Km — ultra races3 169 km
> 100 km4
> 160 km2
Longest race160,9 km
51st Western States 100 Mile Endurance Run — 29/6/2024

Km per year (ultra races)

196
3 races
2022
151
2 races
2023
310
3 races
2024
200
3 races
2025
80
1 race
2026

Race types (share of distance)

Road1,6%
Trail98,4%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0

Records

50 km5h23'46100 km13h49'0350 mi10h18'21100 mi27h32'44

HISTORY

44 race(s)
DateRacePerf.Rk
2026
18.07 50mi USA25th Tahoe Rim Trail 50M Endurance Run 18:44:25 h128
2025
18.10 100km USA5th Lake Sonoma 100K & 50K 16:41:47 h143
13.09 50km USA13th Berkeley Trail Adventure 6:44:27 h43
29.03 50km USA2nd Rattlesnake Dick 7:11:13 h38
2024
29.06 100mi USA51st Western States 100 Mile Endurance Run 29:54:35 h284
13.04 98.9km USA10th Gorge Waterfalls 100k 16:32:26 h233
24.02 50km USA1st The Big Alta 8:03:08 h168
2023
29.04 101.4km USA10th The Canyons Endurance 100 km Run 17:50:41 h309
04.03 50km USA33rd Way Too Cool 50K Endurance Run 6:23:07 h180
2022
05.11 50km USA9th Silver Falls Trail Run 6:51:05 h86
24.09 50km USA1st Mammoth Trail Fest 9:23:23 h185
23.04 95.9km USA9th The Canyons Endurance 100 km Run 17:33:25 h344
2020
08.02 102km NZL12th Tarawera 100 km Ultramarathon 16:39:54 h278
2019
02.11 100mi USA19th Rio Del Lago 100 Mile Endurance Run 27:32:44 h133
24.08 100km USA5th Castle Peak 100 20:24:46 h134
2018
10.11 50mi USA1st Two Peaks 50 Mile Trail Race 11:31:52 h11
06.10 50km USA10th Skyline to the Sea 50km 6:11:20 h57
05.05 100km USA23nd Miwok 100k Trail Race 13:49:03 h146
07.04 50km USA4th Woodside Purisima Creek Crossover 6:35:53 h37
2017
18.11 50km USA15th Woodside Trail Run 50K 6:16:27 h23
23.09 50km USA4th Endurance Challenge - Utah Trail 50 km 8:17:28 h123
06.05 100km USA22nd Miwok 100k Trail Race 14:38:10 h203
09.04 50km USA3rd Woodside Purisima Creek Crossover 6:26:00 h44
2016
03.12 50mi USA10th Endurance Challenge - California Trail 50 Mile 11:35:09 h362
08.10 50mi USA34th Dick Collins Firetrails 50 Mile 12:11:44 h98
25.08 55km SUI3ème Orsières-Champex-Chamonix 10:45:41 h510
07.05 100km USA21st Miwok 100k Trail Race 14:39:14 h210
09.04 50km USA6th Gorge Waterfalls 50k 6:44:49 h80
05.03 50km USA27th Way Too Cool 50K Endurance Run 5:38:43 h271
2015
27.12 50km USA14th Woodside Trail Run 50K 5:55:49 h34
05.12 50mi USA9th Endurance Challenge - California Trail 50 Mile 10:50:06 h266
10.10 50mi USA33rd Dick Collins Firetrails 50 Mile 10:18:21 h65
26.09 50km USA4th Berkeley Trail Adventure 6:38:44 h26
02.09 50km USA6th Burning Man Ultramarathon 5:49:00 h72
12.07 50mi USA8th Leadville Silver Rush 50 Mile Run 11:59:32 h241
02.05 100km USA20th Miwok 100k Trail Race 13:57:00 h165
12.04 50km USA1st Woodside Purisima Creek Crossover 6:15:06 h32
07.03 50km USA26th Way Too Cool 50K Endurance Run 5:23:46 h277
2014
28.12 50km USA13th Woodside Trail Run 50K 6:00:06 h47
06.12 50mi USA8th Endurance Challenge - California Trail 50 Mile 10:50:32 h296
06.09 50km USA1st Overlook Endurance Run 50K 6:44:41 h33
14.06 50km USA3rd Rodeo Valley 50 km Trail Run 7:16:29 h39
08.03 50km USA25th Way Too Cool 50K Endurance Run 6:27:42 h607
2013
07.12 50km USA7th Endurance Challenge - California Trail 50 km 6:51:01 h177