Kengo (髙橋健吾) Takahashi
ID 708345
Born : 1981 Cat. M45 Ultrarunner since 2015 JPN
31
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
72
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
5,6%
Rank quotient ?This runner's calculation uses 31 eligible race(s): Σ(rank − 1) = 559; Σ finishers = 10 029. 559 / 10 029 × 100 = 5.57%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races6 313 km
> 100 km21
> 160 km18
> 200 km16
> 24h12
> 48h3
Longest race516,4 km
7th Last Samurai Standing Backyard Ultra - Kijimadaira — 3/4/2026

Km per year (ultra races)

1 194
4 races
2022
377
2 races
2023
389
1 race
2024
215
1 race
2025
999
3 races
2026

Race types (share of distance)

Road66,5%
Trail1,7%
Stage1,3%
Elim.30,5%

Wins & podiums (ultra)

🏆 Win7
🏆 Win M7
🏅 Top 39
🏅 Top 3 M9
Longest winning streak3
Current streak3

Records

100 km8h31'4624 h252,14 kmBackyard77 loops

HISTORY

32 race(s) · 3 split(s) nested
DateRacePerf.Rk
2026
23.05 24h JPNIAU 24h Asia and Oceania Championships Open 252.141 km1 🏆
03.04 Backyard Ultra JPN7th Last Samurai Standing Backyard Ultra - Kijimadaira 516.362 km (77h)1 🏆
14.03 230km JPN16th Little Edo Oedo 230k 26:02:44 h1 🏆
2025
20.02 Backyard Ultra JPN1st Last Samurai Standing Big's Challenge Cup 214.592 km (32h)12
2024
19.10 Backyard Ultra JPN3rd Backyard Ultra World Team Championships - Japan 388.948 km (58h)8
2023
23.11 Backyard Ultra JPN4th Last Samurai Standing Backyard Ultra - Gunma 281.652 km (42h)1 🏆
11.03 24h JPN15th Jingu Gaien 24 Hour Challenge 95.368 km86
2022
19.11 Backyard Ultra JPN3rd Last Samurai Standing Backyard Ultra - Gunma 301.770 km (45h)1 🏆
22.05 24h JPN1st Hirosaki 24h Ultra Run 179.186 km12
30.04 513km JPN17th River Road Foot Race 513 km 4d 12:14:54 h16
09.01 200km JPN2nd Japan Trophy 200 23:33:00 h16
2021
20.11 Backyard Ultra JPN2nd Last Samurai Standing Backyard Ultra - Tokyo 221.298 km (33h)5
30.10 146km JPN3rd Autumn leaves in Okumusashi / Chichibu Journey run 15:18:56 h7
03.05 251km JPN16th River Road Foot Race 254 km 29:55:54 h3 🥉
10.04 70km JPN16th Toda Saiko 70 km 5:05:01 h10
03.04 80km JPN9th Arakawa Riverside Journey Stage Race - Stage 1 9:19:00 h8
2020
04.10 100km JPN7th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 9:15:17 h7
2019
13.07 263km JPN4th Michinoku Tsugaru Journey Run 263K 42:56:55 h26
19.05 100km JPN7th Tokyo Shibamata 100 km 8:39:40 h18
23.02 233km JPN9th Little Edo Oedo 230k 24:53:32 h1 🏆
2018
10.11 24h JPN13th Jingu Gaien 24 Hour Challenge 246.526 km4
18.08 24h JPN9th Lake Miyagase 24-hour Relay Marathon 228.600 km1 🏆
03.06 100km JPN6th Tokyo Shibamata 100 km 8:53:17 h24
22.04 118km JPN28th Fuji 5 Lakes 118 km Challenge 13:18:51 h125
03.03 233km JPN8th Little Edo Oedo 230k 24:49:50 h2 🥈
2017
11.11 24h JPN12th Jingu Gaien 24 Hour Challenge 200.008 km35
04.06 100km JPN5th Tokyo Shibamata 100 km 9:23:46 h87
08.04 70km JPN12th Toda Saiko 70 km 5:21:02 h13
2016
03.09 110km JPN1st Trainic World 100 km in Sai-No-Kuni 23:52:49 h9
05.06 100km JPN4th Tokyo Shibamata 100 km 8:31:46 h9
09.04 70km JPN11th Toda Saiko 70 km 5:38:54 h7
2015
06.06 100km JPN3rd Tokyo Shibamata 100 km 9:07:24 h42