Natsuki (田中夏樹) Tanaka
ID 426835
Born : 1971 Cat. M55 Ultrarunner since 2013 JPN
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
3,7%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 144; Σ finishers = 3 892. 144 / 3 892 × 100 = 3.70%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed9
Km — ultra races654 km
Longest race100,0 km
3rd Tokyo Shibamata 100 km — 6/6/2015

Km per year (ultra races)

60
1 race
2022
2023
2024
86
1 race
2025
2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win3
🏆 Win M3
🏅 Top 34
🏅 Top 3 M4
Longest winning streak3
Current streak0

Records

100 km9h20'496 h77,69 km

HISTORY

9 race(s)
DateRacePerf.Rk
2025
21.06 10h JPN20th Green Charity Marathon Tokyo - Hard Run 10H 85.700 km2 🥈
2022
22.05 60km JPN10th Tokyo Shibamata 60 km 5:16:35 h19
2019
19.05 60km JPN7th Tokyo Shibamata 60 km 5:16:16 h23
2018
02.06 6h JPN17. Green Charity Marathon Tokyo - Standard Run 6H 76.250 km1 🏆
2017
10.06 6h JPN16. Green Charity Marathon Tokyo - Standard Run 6H 77.686 km1 🏆
2016
18.06 6h JPN15. Green Charity Marathon Tokyo - Standard Run 6H 73.927 km1 🏆
05.06 60km JPN4th Tokyo Shibamata 60 km 5:13:31 h25
2015
06.06 100km JPN3rd Tokyo Shibamata 100 km 9:20:49 h65
2013
01.06 60km JPN1st Tokyo Shibamata 60 km 5:06:11 h16