Toshiyuki (伊藤寿行) Ito
ID 310675
Born : 1964 Cat. M60 Ultrarunner since 2011 JPN
46
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
52
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 ?JPNJapan
53,9%
Rank quotient ?This runner's calculation uses 46 eligible race(s): Σ(rank − 1) = 19 192; Σ finishers = 35 584. 19 192 / 35 584 × 100 = 53.93%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed46
Km — ultra races3 916 km
> 100 km11
Longest race128,0 km
6th Tokyo Great Race — 8/11/2025

Km per year (ultra races)

426
5 races
2022
320
4 races
2023
270
3 races
2024
249
3 races
2025
51
1 race
2026

Race types (share of distance)

Road47,9%
Trail52,1%

Records

50 km9h47'01100 km12h43'37

HISTORY

46 race(s)
DateRacePerf.Rk
2026
10.05 51km JPN7th FunTrails Round Minano 8:59:16 h227
2025
08.11 128km JPN6th Tokyo Great Race 21:59:35 h17
11.05 51km JPN6th FunTrails Round Minano 9:14:46 h251
26.04 70km JPN4th KAI 70k 17:26:05 h632
2024
02.11 128km JPN5th Tokyo Great Race 20:52:13 h8
13.10 71.5km JPN32th Hasetsune Cup - Japan Mountain Endurance Race 18:53:03 h1013
26.04 70km JPN3rd KAI 70k 15:40:45 h517
2023
03.11 128km JPN4th Tokyo Great Race 128km 22:26:01 h12
08.10 71.5km JPN31th Hasetsune Cup - Japan Mountain Endurance Race 18:39:59 h1025
14.05 51km JPN4th FunTrails Round Minano 8:06:13 h116
22.04 69km JPN2nd KAI 69k 13:01:58 h254
2022
05.11 128km JPN3rd Tokyo Great Race 128km 21:14:16 h15
09.10 71.5km JPN30th Hasetsune Cup - Japan Mountain Endurance Race 19:25:15 h828
28.08 75km JPN9th Tsukuba Renjyo 70 km Road & Trail Run 12:23:42 h121
26.06 51km JPN3rd FunTrails Round Minano 9:41:10 h148
17.04 100km JPN32th Fuji 5 Lakes 100 km Challenge 12:43:37 h611
2021
06.11 128km JPN2nd Tokyo Great Race 128km 22:38:46 h10
25.04 100km JPN6th Tamagawa Ultra Marathon - 100 km 14:51:19 h14
10.04 70km JPN16th Toda Saiko 70 km 7:36:07 h234
2020
21.11 104km JPN3rd Lake Kasumigaura Ultra Run 18:50:50 h6
19.09 123km JPN3rd Utsukushima Fukushima Journey Run 123K 19:12:20 h74
05.07 8h JPN26th 8-Hour Endurance Race Tokorozawa 58.800 km140
2019
24.03 100km JPN1st Ibaraki 100k Ultra Marathon 12:56:07 h365
2018
07.10 71.5km JPN26th Hasetsune Cup - Japan Mountain Endurance Race 18:10:47 h762
19.05 106km JPN3rd Trainic World 100 km in Sai-No-Kuni 29:06:23 h238
22.04 100km JPN28th Fuji 5 Lakes 100 km Challenge 13:21:42 h895
2017
08.10 71.5km JPN25th Hasetsune Cup - Japan Mountain Endurance Race 17:35:29 h952
27.08 70km JPN4th Tsukuba Renjyo 70 km Road & Trail Run 10:50:40 h80
04.06 78km JPN24. Ultramarathon Okumusashi 9:48:36 h786
20.05 106km JPN2nd Trainic World 100 km in Sai-No-Kuni 29:11:59 h182
23.04 100km JPN27th Fuji 5 Lakes 100 km Challenge 12:57:04 h799
2016
19.11 105km JPN2nd FunTrails100K Round 30:14:59 h344
09.10 71.5km JPN24th Hasetsune Cup - Japan Mountain Endurance Race 15:54:35 h783
28.08 70km JPN3rd Tsukuba Renjyo 70 km Road & Trail Run 10:35:04 h137
12.06 50km JPN3rd Trainic world Hanno-Ogose Trail Run 50km 9:47:01 h87
24.04 100km JPN26th Fuji 5 Lakes 100 km Challenge 13:08:34 h840
2015
31.10 71.5km JPN23rd Hasetsune Cup - Japan Mountain Endurance Race 15:33:32 h1014
30.08 70km JPN2nd Tsukuba Renjyo 70 km Road & Trail Run 11:02:39 h207
19.04 100km JPN25th Fuji 5 Lakes 100 km Challenge 12:45:24 h690
2014
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 15:14:43 h870
14.09 110km JPN6th Shinetsu Five Mountains Trail 110km 20:12:24 h322
31.08 70km JPN1st Tsukuba Renjyo 70 km Road & Trail Run 10:36:36 h63
20.04 100km JPN24th Fuji 5 Lakes 100 km Challenge 13:04:37 h804
2012
07.10 71.5km JPN20th Hasetsune Cup - Japan Mountain Endurance Race 14:58:56 h732
19.05 82km JPN1st Shizuoka to Yamanashi 18:24:28 h313
2011
09.10 71.5km JPN19th Hasetsune Cup - Japan Mountain Endurance Race 15:47:32 h700