Tamaki (前田圭紀) Maeda
Born : 1976 Cat. M50 Ultrarunner since 2012 JPN
32
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
53
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
2
Countries visited ?FRAFranceJPNJapan
15,0%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 3 743; Σ finishers = 24 921. 3 743 / 24 921 × 100 = 15.02%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races3 610 km
> 100 km14
> 160 km11
> 200 km1
Longest race235,0 km

Km per year (ultra races)

169
2 races
2022
336
2 races
2023
161
1 race
2024
461
3 races
2025
100
1 race
2026

Race types (share of distance)

Road9,3%
Trail90,7%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0

HISTORY

32 race(s)
DateRacePerf.Rk
2026
16.05 100km JPN11th Trainic World 100 km in Sai-No-Kuni 20:50:12 h15
2025
18.07 100km JPN1st Watershed Trail 37:43:09 h5
30.05 200km JPN4th Tokyo Grand Trail - 200km 2d 06:12:16 h10
22.03 100mi JPN5th Nagano Grand Circle 26:11:00 h8
2024
16.03 100mi JPN4th Nagano Grand Circle 33:59:23 h9
2023
06.10 169km JPN3rd Lake Biwa 100 35:39:45 h40
21.04 167km JPN8th Ultra-Trail Mt. Fuji 28:39:37 h130
2022
06.11 68km JPN6th Koshu Alps Haute Route Challenge 10:42:19 h7
11.06 100.8km JPN2nd Okushinano 100 14:51:12 h80
2021
12.12 69.1km JPN8th Izu Trail Journey 8:34:57 h97
2020
22.02 235km JPN10th Little Edo Oedo 235k 31:37:03 h19
2019
09.06 100km JPN8th Hida Takayama 100 km Ultramarathon 10:09:16 h173
2018
06.10 100mi JPN5th OSJ Koumi 100 33:49:54 h54
27.04 170km JPN5th Ultra-Trail Mt. Fuji 35:53:09 h243
2017
17.09 52km JPN9th Shinetsu Five Mountains Trail 110km 9:44:01 h600
01.09 167.7km FRA15ème Ultra Trail Tour du Mont Blanc 35:54:44 h397
01.07 80km JPN7th Utsukushigahara 80 km Trail Run 9:22:03 h75
20.05 100mi JPN2nd Trainic World 100 Mile in Sai-No-Kuni 34:38:41 h14
2016
19.11 105km JPN2nd FunTrails100K Round 18:55:19 h25
2015
31.10 71.5km JPN23rd Hasetsune Cup - Japan Mountain Endurance Race 13:36:58 h615
19.07 118km JPN2nd SkyView Ultra-Trail - Yamada Noboru Memorial Cup 25:06:59 h77
15.03 72km JPN2nd Izu Trail Journey 9:22:00 h84
2014
09.11 50km JPN6th Kanna Mountain Run II 7:54:46 h19
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 11:35:45 h264
25.04 100mi JPN3rd Ultra-Trail Mt. Fuji 32:25:24 h127
2013
13.10 71.5km JPN21st Hasetsune Cup - Japan Mountain Endurance Race 10:54:39 h165
31.08 70km JPN3rd Utsukushigahara 70 km Trail Run 11:11:19 h41
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 10:26:09 h83
26.04 84km JPN2nd Shizuoka to Yamanashi 12:24:57 h23
10.03 72km JPN1st Izu Trail Journey 9:00:59 h83
2012
07.10 71.5km JPN20th Hasetsune Cup - Japan Mountain Endurance Race 11:07:52 h172
25.08 70km JPN2nd Utsukushigahara 70 km Trail Run 11:17:19 h21