Takahiro (川尻貴大) Kawajiri
ID 869210
Born : 1996 Cat. M23 Ultrarunner since 2016 JPN
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
51
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 ?GERGermanyGREGreeceJPNJapanTPETaiwan
30,4%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 3 953; Σ finishers = 13 019. 3 953 / 13 019 × 100 = 30.36%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races3 722 km
> 100 km14
> 160 km7
> 200 km3
> 24h4
> 48h1
Longest race254,0 km
15th River Road Foot Race 254 km — 3/5/2019

Km per year (ultra races)

2022
467
4 races
2023
542
4 races
2024
553
3 races
2025
250
2 races
2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win2
🏆 Win M2
🏅 Top 34
🏅 Top 3 M5
Longest winning streak1
Current streak0

Records

100 km9h09'22100 mi28h00'066 h56,10 km24 h180,79 km48 h136,58 km

HISTORY

28 race(s) · 6 split(s) nested
DateRacePerf.Rk
2026
31.05 100km JPN1st Nara Ultra Marathon 11:51:35 h551
04.04 150km JPN9th Lake Biwa Kaizu Sakura Maranic - 150 km LS 21:11:00 h1 🏆
2025
27.09 246km GRE42. Spartathlon 34:48:27 h173
14.09 100km JPN23th Tango 100 km Ultramarathon 10:46:59 h147
26.04 207km JPN4th Reiheishi Michi Kyoto to Nikko - 207 km 39:28:00 h1 🏆
2024
17.08 100mi GER12. Mauerweglauf 100 Meilen Berlin 28:00:06 h279
15.06 6h JPN3rd Oizumi Ryokuchi Park 6h 50.600 km7
21.05 24h JPN3rd Hirosaki 24h Ultra Run 180.789 km29
06.04 150km JPN7th Lake Biwa Kaizu Sakura Maranic - 150 km LS 19:59:00 h3 🥉
2023
17.09 100km JPN21th Tango 100 km Ultramarathon 12:34:02 h248
19.08 6h JPN23th 6-hour relay & solo marathon Kobe 56.100 km5
10.06 24h JPN2nd Oizumi Ryokuchi Park 24h 160.600 km5
08.04 150km JPN6th Lake Biwa Kaizu Sakura Maranic - 150 km LS 22:10:00 h3 🥉
2021
10.04 150km JPN4th Lake Biwa Kaizu Sakura Maranic - 150 km 26:19:00 h19
2020
07.02 48h TPE9th Taipei 48hr Ultra Marathon 136.578 km33
19.01 100km JPN30th Miyako 100 km Ultramarathon 10:34:53 h62
2019
15.12 100km JPN4th Okinawa 100km Ultramarathon 11:29:02 h131
03.05 254km JPN15th River Road Foot Race 254 km 2d 04:16:00 h34
20.01 100km JPN29th Miyako 100 km Ultramarathon 9:09:22 h11
2018
01.12 200km JPN3rd Santo Ultra Maranic - Santo Course 35:38:00 h21
04.08 24h JPN18th 24-hour relay & solo marathon Kobe 151.300 km24
10.06 100km JPN7th Hida Takayama 100 km Ultramarathon 13:23:09 h1119
22.04 118km JPN28th Fuji 5 Lakes 118 km Challenge 14:22:17 h282
2017
02.07 100km JPN1st Nikko 100km Ultramarathon 11:41:09 h255
11.06 100km JPN6th Hida Takayama 100 km Ultramarathon 10:22:55 h174
05.03 100km JPN3rd Nagoura Marathon 100 km 13:51:18 h131
2016
18.12 100km JPN1st Okinawa 100km Ultramarathon 9:46:47 h22
18.09 100km JPN16th Tango 100 km Ultramarathon 11:07:45 h211