Koji (泉谷浩二) Izutani
ID 549604
Born : 1978 Cat. M45 Ultrarunner since 2014 JPN
38
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 ?FRAFranceITAItalyJPNJapan
43,5%
Rank quotient ?This runner's calculation uses 38 eligible race(s): Σ(rank − 1) = 12 957; Σ finishers = 29 773. 12 957 / 29 773 × 100 = 43.52%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed38
Km — ultra races3 248 km
> 100 km9
> 160 km3
Longest race171,0 km
16ème Ultra Trail Tour du Mont Blanc (UTMB) — 31/8/2018

Km per year (ultra races)

267
2 races
2022
62
1 race
2023
2024
2025
2026

Race types (share of distance)

Road21,2%
Trail78,8%

Records

50 km6h59'51100 km12h20'51

HISTORY

38 race(s)
DateRacePerf.Rk
2023
16.04 62km JPN33th Fuji 3 Lakes 62 km Challenge 6:38:09 h70
2022
22.05 100km JPN28th Yatsugatake Nobeyama 100 km 13:38:44 h752
22.04 167km JPN7th Ultra-Trail Mt. Fuji 41:21:18 h1307
2019
01.06 59km JPN11th OSJ Okukuji Trail 60k 11:59:36 h161
19.05 100km JPN25th Yatsugatake Nobeyama 100 km 12:20:51 h511
2018
31.08 171km FRA16ème Ultra Trail Tour du Mont Blanc 44:58:58 h1452
20.05 100km JPN24th Yatsugatake Nobeyama 100 km 12:57:16 h737
27.04 170km JPN5th Ultra-Trail Mt. Fuji 44:00:57 h833
2017
10.12 71.7km JPN4th Izu Trail Journey 11:59:39 h545
29.10 75km JPN3rd OSJ Yamanaka Onsen Trail Run 16:54:54 h85
23.09 129km JPN4th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup 29:55:17 h267
16.09 102km JPN9th Shinetsu Five Mountains Trail 100 mile 19:53:37 h338
10.09 51.4km JPN7th Hakuba Int. Trail Run 5:37:43 h24
15.07 100km JPN10th OSJ Ontake 100km Ultra Trail 14:59:32 h350
25.06 72.7km JPN4. Spatrail - Shima to Kusatsu 9:39:15 h80
10.06 45km JPN10th Skyline Trail Sugadaira 6:10:24 h65
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 12:38:57 h417
13.05 108.7km JPN1st Aso Round Trail 23:07:33 h65
23.04 70km JPN3rd Okumikawa Power Trail 11:20:05 h150
2016
19.11 105km JPN2nd FunTrails100K Round 30:18:28 h347
09.10 71.5km JPN24th Hasetsune Cup - Japan Mountain Endurance Race 14:39:27 h566
24.08 119km ITA7ème Sur les Traces des Ducs de Savoie 29:38:50 h613
16.07 65km JPN7th Nozawa Onsen 4100D Mountain Trail 11:09:55 h95
26.06 72.7km JPN3. Spatrail - Shima to Kusatsu 11:05:38 h215
22.05 100km JPN22nd Yatsugatake Nobeyama 100 km 13:00:12 h701
26.03 112km JPN14th Mt. Rocco Cannonball Run - 112 km Power 16:56:22 h40
2015
29.11 50km JPNKumano Old Trails 7:06:20 h16
08.11 50km JPN7th Kanna Mountain Run 6:59:51 h18
18.10 56km JPN13th Mt. Rocco Cannonball Run - 56 km Speed 7:47:35 h75
26.09 76.7km JPN4th Shizuoka to Yamanashi 13:19:58 h98
13.09 53km JPN5th Hakuba Int. Trail Run 6:09:03 h23
30.05 50km JPN1st Mt. Hiei Int. 50 km Trail Run 9:56:20 h257
12.04 63km JPN1st Okumikawa Power Trail 11:31:17 h169
15.03 72km JPN2nd Izu Trail Journey 11:32:16 h420
2014
22.11 60km JPN1st Kiso-Sansen 60 km Ultra-Marathon 6:31:40 h437
14.09 53km JPN4th Hakuba Int. Trail Run 6:52:38 h54
20.07 65km JPN5th Nozawa Onsen 4100D Mountain Trail 12:21:31 h205
01.06 100km JPN2nd Tokyo Shibamata 100 km 13:32:57 h437