Tetsuya (川合哲也) Kawai
ID 221972
Born : 1968 Cat. M55 Ultrarunner since 2011 JPN
41
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
53
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
4
Countries visited ?FRAFranceJPNJapanKORSouth KoreaTHAThailand
44,9%
Rank quotient ?This runner's calculation uses 41 eligible race(s): Σ(rank − 1) = 14 011; Σ finishers = 31 224. 14 011 / 31 224 × 100 = 44.87%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed41
Km — ultra races4 209 km
> 100 km17
> 160 km7
Longest race171,0 km
3rd Thailand by UTMB - 100mi — 9/12/2022

Km per year (ultra races)

438
3 races
2022
500
5 races
2023
210
2 races
2024
157
2 races
2025
105
1 race
2026

Race types (share of distance)

Road26,0%
Trail74,0%

Records

50 km8h43'07100 km9h37'5250 mi12h48'50100 mi27h36'31

HISTORY

41 race(s)
DateRacePerf.Rk
2026
20.06 105km JPN2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance100 21:49:54 h291
2025
18.10 107km KOR12th TransJeju by UTMB - Jeju100K 22:02:36 h391
15.03 50km JPN11th Mt. Hiei Int. 50 km Trail Run 9:16:20 h239
2024
08.06 100.8km JPN4th Okushinano 100 17:04:02 h202
23.03 109km JPN2nd Hiroshima Wangan Trail Run 26:11:02 h227
2023
01.09 170km FRA20ème Ultra Trail Tour du Mont Blanc 44:59:34 h1473
06.08 50km JPN1st Mount Akagi Trail Running Race 8:43:07 h68
08.07 100km JPN1st Shiga Kogen 100 20:09:15 h118
04.06 100km JPN2. OSJ Aizu Bandaisan Ultramarathon - 100 km 12:42:20 h51
13.05 80km JPN3rd Minakami Trail Race - 80km 20:17:02 h7
2022
09.12 171km THA3rd Thailand by UTMB - 100mi 45:18:26 h200
05.06 100km JPN1. OSJ Aizu Bandaisan Ultramarathon - 100 km 12:24:23 h116
22.04 167km JPN7th Ultra-Trail Mt. Fuji 37:59:23 h810
2020
10.10 100mi JPN6th OSJ Koumi 100 35:26:14 h101
2019
14.09 100mi JPN11th Shinetsu Five Mountains Trail 100 mile 27:36:31 h80
28.07 70km JPN7th Mt. Taisetsu Trail Journey 11:01:37 h49
29.06 80km JPN9th Utsukushigahara 80 km Trail Run 12:48:50 h87
2018
09.12 71.7km JPN5th Izu Trail Journey 11:19:10 h434
17.11 106km JPN4th FunTrails100K Round 29:00:00 h341
15.09 100mi JPN10th Shinetsu Five Mountains Trail 100 mile 30:48:42 h157
22.04 100km JPN28th Fuji 5 Lakes 100 km Challenge 9:37:52 h71
2017
16.09 102km JPN9th Shinetsu Five Mountains Trail 100 mile 19:10:10 h256
25.06 72.7km JPN4. Spatrail - Shima to Kusatsu 10:37:59 h199
23.04 70km JPN3rd Okumikawa Power Trail 11:28:59 h169
2016
11.12 71.7km JPN3rd Izu Trail Journey 10:48:46 h276
19.11 105km JPN2nd FunTrails100K Round 27:52:03 h240
18.09 110km JPN8th Shinetsu Five Mountains Trail 110km 16:41:31 h165
26.06 72.7km JPN3. Spatrail - Shima to Kusatsu 10:54:19 h189
12.06 45.4km JPN9th Skyline Trail Sugadaira 7:15:34 h145
2015
18.07 100km JPN8th OSJ Ontake 100km Ultra Trail 15:28:47 h362
28.06 100km JPN30. Lake Saroma 100 km Ultramarathon 12:12:02 h1699
2014
18.05 100km JPN20th Yatsugatake Nobeyama 100 km 13:51:53 h1130
2013
07.09 100mi JPN2nd OSJ Yatsugatake Super Trail 100 miles race 32:27:35 h143
13.07 100km JPN6th OSJ Ontake 100km Ultra Trail 16:25:23 h457
30.06 100km road race JPN28. Lake Saroma 100 km Ultramarathon 11:02:24 h653
21.04 112km JPN23rd Fuji 5 Lakes 112 km Challenge 14:17:02 h221
2012
24.06 100km road race JPN27. Lake Saroma 100 km Ultramarathon 10:34:06 h527
19.05 82km JPN1st Shizuoka to Yamanashi 20:04:03 h466
22.04 112km JPN22nd Fuji 5 Lakes 112 km Challenge 13:51:58 h309
2011
26.06 100km road race JPN26. Lake Saroma 100 km Ultramarathon 11:13:49 h723
30.04 72km JPN21st Fuji 5 Lakes 72 km Challenge 9:03:18 h210