Yung-Hae Cho
ID 607467
Born : 1975 Cat. W50 Ultrarunner since 2014 USA
32
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
1
Countries visited ?USAUnited States
50,5%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 3 426; Σ finishers = 6 782. 3 426 / 6 782 × 100 = 50.52%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 726 km
> 100 km7
> 160 km6
> 24h1
Longest race160,9 km
51st Western States 100 Mile Endurance Run — 29/6/2024

Km per year (ultra races)

209
2 races
2022
250
3 races
2023
161
1 race
2024
50
1 race
2025
2026

Race types (share of distance)

Trail97,1%
Elim.2,9%

Records

50 km5h06'13100 km14h19'2850 mi9h23'27100 mi25h26'15Backyard12 loops

HISTORY

32 race(s)
DateRacePerf.Rk
2025
12.07 50km USA27th Siskiyou Out Back 50 km Trail Run 7:00:21 h79
2024
29.06 100mi USA51st Western States 100 Mile Endurance Run 29:36:02 h263
2023
05.08 100km USA22nd Waldo 100K Trail Run 15:45:22 h53
08.07 50km USA25th Siskiyou Out Back 50 km Trail Run 6:03:22 h46
06.05 100km USA26th Miwok 100k Trail Race 14:25:00 h182
2022
29.10 159.2km USA20th Javelina Jundred 100 Mile Endurance Run 26:09:15 h214
18.06 50km USA35th McKenzie River 50 km Trail Run 5:49:43 h67
2021
06.11 100mi USA21st Rio Del Lago 100 Mile Endurance Run 28:09:01 h164
09.10 Backyard Ultra USA3rd Lastest not Fastest Backyard Ultra 79.662 km33
10.07 50km USA23rd Siskiyou Out Back 50 km Trail Run 6:42:57 h66
26.03 50km USA11th Badger Mountain 50 km Challenge 7:08:04 h55
2020
17.10 50km USA1st Rogue Gorge 50 km Race 6:21:39 h52
08.02 50mi USA7th Sean O'Brien 50 Mile Trail Race 12:40:12 h62
2019
02.11 100mi USA19th Rio Del Lago 100 Mile Endurance Run 25:26:15 h89
13.07 50km USA21th Mt. Hood 50 km Trail Run 5:06:13 h32
04.05 100km USA24th Miwok 100k Trail Race 14:19:28 h163
16.03 50km USA27th Chuckanut 50K 6:45:47 h275
2018
22.09 100mi USA6th Mountain Lakes 100 25:36:10 h57
14.07 50mi USA20th Mt. Hood 50 Mile Trail Run 9:23:27 h37
16.06 50km USA1st Wy’east Wonder 50 km Trail Race 5:33:48 h27
12.05 50km USA5th Smith Rock Ascent 50K 5:42:14 h55
17.03 50km USA26th Chuckanut 50K 5:50:30 h158
2017
28.10 100mi USA15th Javelina Jundred 100 Mile Endurance Run 27:43:20 h251
07.10 50km USA4th Oregon Coast 50k 5:55:52 h105
17.09 50km USA8th Flagline Trail Fest 50K 6:28:18 h34
22.07 50km USA19th Siskiyou Out Back 50 km Trail Run 7:12:54 h121
2016
27.08 100mi USA18th Cascade Crest Classic 100 Mile 33:47:35 h122
09.07 50mi USA18th Mt. Hood 50 Mile Trail Run 9:32:14 h46
11.06 100km USA2nd NUT 100K 15:44:13 h24
07.05 50km USA3rd The Canyons Endurance 50 km Run 7:19:36 h19
19.03 50km USA24th Chuckanut 50K 5:53:27 h133
2014
22.11 50mi USA52nd JFK 50 Mile 9:53:52 h374