Kentaro (東健太郎) Azuma
Born : 1978 Cat. M45 Ultrarunner since 2013 JPN
24
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
48
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
7
Countries visited ?AUTAustriaBELBelgiumFRAFranceGERGermanyJPNJapanNEDNetherlandsSUISwitzerland
37,0%
Rank quotient ?This runner's calculation uses 24 eligible race(s): Σ(rank − 1) = 1 861; Σ finishers = 5 031. 1 861 / 5 031 × 100 = 36.99%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed24
Km — ultra races2 684 km
> 100 km11
> 160 km5
> 24h7
Longest race175,0 km

Km per year (ultra races)

575
5 races
2022
597
4 races
2023
447
4 races
2024
526
5 races
2025
80
1 race
2026

Race types (share of distance)

Road49,2%
Trail44,8%
Elim.6,0%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 31
🏅 Top 3 M1
Longest winning streak1
Current streak0

HISTORY

27 race(s) · 2 split(s) nested
DateRacePerf.Rk
2026
28.03 24h JPN2nd Biwako 24 80.000 km83
2025
18.10 56km JPN33th Mt. Rocco Cannonball Run - 56 km Speed 9:13:32 h80
20.09 24h JPN25th 24-hour relay & solo marathon Kobe 145.200 km20
20.04 100km JPN16th 100 km Ultra Maranic Osaka 12:09:23 h85
29.03 24h JPN1st Biwako 24 174.795 km6
15.03 50km JPN11th Mt. Hiei Int. 50 km Trail Run 8:07:03 h80
2024
29.12 130km JPN5th Kyoto Great Round 130 km 27:00:14 h43
05.07 60km SUI15ème Trail Verbier Saint-Bernard by UTMB - X-Alpine 12:53:01 h247
14.06 87km AUT12. Zugspitz Ehrwald Trail 16:51:26 h101
23.03 50km NED3. 24hrs Sittard - 50km Split 4:34:14 h13
23.03 100km NED3. 24hrs Sittard - 100km Split 11:50:49 h32
23.03 100mi NED3. 24hrs Sittard - 100mi Split 21:49:38 h21
23.03 24h NED3. 24hrs Sittard 169.946 km22
2023
16.12 100mi BELThe Bello Gallico Trail 100mi 22:58:00 h66
30.06 Backyard Ultra BEL3. Antwerp Backyard Ultra 160.944 km (24h)6
19.05 175km FRA1er Trail Alsace Grand Est by UTMB - Ultra-Trail des Chevaliers 30:00:07 h146
29.04 100km BELL.A.T Legends Ardennes Trail 100km 16:15:53 h59
2022
29.10 100km BEL10th Bear Trail 100 km 12:13:17 h34
09.09 24h GER12. Rekener 24 Std.-Lauf 153.600 km1 🏆
14.08 70km GER1. Monschau-Ultra Marathon K70 7:49:13 h21
09.07 24h NEDDe 24 Uur van Deventer 150.813 km12
28.05 101km GER13. Bödefelder Hollenlauf 101 km 11:55:13 h4
2021
20.03 112km JPN24th Mt. Rocco Cannonball Run - 112 km Power 18:10:07 h42
2019
15.09 100km JPN19th Tango 100 km Ultramarathon 11:55:30 h266
2018
10.06 100km JPN2nd Koyasan and Ryujin-Onsen 100 km Ultra Marathon 13:17:34 h181
2015
17.05 77km JPNSaba Highway Ultramarathon 9:48:10 h152
2013
13.04 70km JPN8th Toda Saiko 70 km 7:34:39 h128