Kazutomo (山本一智) Yamamoto
Born : 1985 Cat. M40 Ultrarunner since 2015 JPN
33
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
3
Countries visited ?FRAFranceITAItalyJPNJapan
21,3%
Rank quotient ?This runner's calculation uses 33 eligible race(s): Σ(rank − 1) = 3 965; Σ finishers = 18 619. 3 965 / 18 619 × 100 = 21.30%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed33
Km — ultra races3 416 km
> 100 km16
> 160 km7
Longest race200,0 km

Km per year (ultra races)

428
4 races
2022
543
4 races
2023
378
3 races
2024
467
3 races
2025
60
1 race
2026

Race types (share of distance)

Road8,8%
Trail91,2%

HISTORY

33 race(s)
DateRacePerf.Rk
2026
13.06 60km JPN12th Fairy Trail - Super Long 9:13:31 h13
2025
13.09 162.2km JPN17th Shinetsu Five Mountains Trail 100 mile 29:31:17 h97
21.06 105km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance100 22:39:29 h153
15.03 200km JPN15th Little Edo Oedo 200k 31:45:01 h67
2024
14.09 163.1km JPN16th Shinetsu Five Mountains Trail 100 mile 26:06:23 h82
06.07 100km JPN2nd Shiga Kogen 100 17:43:34 h53
11.05 115.1km JPN2nd Aso Volcano Trail 17:16:00 h27
2023
18.11 106km JPN9th FunTrails100K Round 18:34:29 h24
01.09 170km FRA20ème Ultra Trail Tour du Mont Blanc 38:06:11 h648
08.07 100km JPN1st Shiga Kogen 100 18:35:23 h68
21.04 167km JPN8th Ultra-Trail Mt. Fuji 31:36:57 h253
2022
20.11 106km JPN8th FunTrails100K Round 19:45:38 h43
02.07 85km JPN12th Utsukushigahara 85 km Trail Run 14:25:22 h38
22.04 167km JPN7th Ultra-Trail Mt. Fuji 29:54:35 h263
10.04 70km JPN7th Okumikawa Power Trail 10:27:05 h53
2021
20.11 106km JPN7th FunTrails100K Round 19:22:26 h64
23.07 65km JPN12th Nozawa Onsen 4100D Mountain Trail Pair 9:27:54 h5
2020
25.10 70km JPN5th Ryoma Dappan Trail Race 10:24:40 h32
2019
21.09 143km JPN6th SkyView Ultra-Trail 140 - Yamada Noboru Memorial Cup 27:26:01 h79
15.06 55km JPN2nd Yuzawa Sky Extreme Trail 8:26:20 h18
07.04 70km JPN5th Okumikawa Power Trail 9:52:07 h55
2018
18.10 165.7km FRA26ème Grand Raid Réunion - La Diagonale des Fous 42:24:31 h372
08.09 49.8km JPN6th Trainic world Soto-Chichibu Trail Run 50km 7:39:05 h27
22.07 80km JPN6th Mt. Taisetsu Trail Journey 9:06:15 h39
12.05 108.7km JPN2nd Aso Round Trail 17:33:48 h11
2017
10.12 71.7km JPN4th Izu Trail Journey 9:40:35 h125
29.10 75km JPN3rd OSJ Yamanaka Onsen Trail Run 15:05:38 h47
30.08 119km ITA8ème Sur les Traces des Ducs de Savoie 25:49:46 h415
20.05 106km JPN2nd Trainic World 100 km in Sai-No-Kuni 23:35:27 h36
2016
04.12 50km JPN4th Kumano Old Trails 7:37:13 h56
22.10 60km JPN3rd Shigakogen Extreme Trail 8:31:32 h39
26.06 72.7km JPN3. Spatrail - Shima to Kusatsu 10:54:27 h190
2015
15.03 72km JPN2nd Izu Trail Journey 11:52:55 h506