Hoshi (酒井星) Sakai
ID 370838
Born : 1973 Cat. M50 Ultrarunner since 2012 JPN
21
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
39
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
30,6%
Rank quotient ?This runner's calculation uses 21 eligible race(s): Σ(rank − 1) = 4 234; Σ finishers = 13 843. 4 234 / 13 843 × 100 = 30.59%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed21
Km — ultra races2 052 km
> 100 km9
Longest race160,0 km
2nd Yagurazawa Round Trip Pre-Tournament — 15/4/2023

Km per year (ultra races)

282
3 races
2022
261
2 races
2023
2024
100
1 race
2025
100
1 race
2026

Race types (share of distance)

Road56,7%
Trail43,3%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M2
Longest winning streak1
Current streak1

Records

100 km9h47'21100 mi26h47'15

HISTORY

21 race(s)
DateRacePerf.Rk
2026
11.04 100km JPN5th Yagurazawa Round Trip Pre-Tournament 12:35:56 h1 🏆
2025
12.04 100km JPN4th Yagurazawa Round Trip Pre-Tournament 12:26:07 h2 🥈
2023
18.08 101km JPN10th World Cultural Heritage "Fuji" Foot Race 15:07:24 h80
15.04 160km JPN2nd Yagurazawa Round Trip Pre-Tournament 26:47:15 h12
2022
09.10 71.5km JPN30th Hasetsune Cup - Japan Mountain Endurance Race 18:23:48 h692
18.09 109km JPN14th Shinetsu Five Mountains Trail 110km 21:41:50 h287
20.08 101km JPN9th World Cultural Heritage "Fuji" Foot Race 14:09:01 h41
2021
05.12 100km JPN1st Tokyo Edogawa Ultra Marathon - 100 km 9:55:56 h32
2020
22.08 101km JPN8th World Cultural Heritage "Fuji" Foot Race 14:42:32 h44
2019
17.08 101km JPN7th World Cultural Heritage "Fuji" Foot Race 14:17:24 h53
2018
07.10 71.5km JPN26th Hasetsune Cup - Japan Mountain Endurance Race 14:09:37 h269
22.04 100km JPN28th Fuji 5 Lakes 100 km Challenge 9:47:21 h92
2017
08.10 71.5km JPN25th Hasetsune Cup - Japan Mountain Endurance Race 13:59:25 h407
20.05 106km JPN2nd Trainic World 100 km in Sai-No-Kuni 27:57:03 h129
2016
19.11 105km JPN2nd FunTrails100K Round 23:37:46 h121
09.10 71.5km JPN24th Hasetsune Cup - Japan Mountain Endurance Race 12:32:14 h255
2015
31.10 71.5km JPN23rd Hasetsune Cup - Japan Mountain Endurance Race 12:01:47 h378
2014
28.09 100km JPN17th Muraoka 100 km Ultra Marathon 11:49:39 h108
2013
15.09 110km JPN5th Shinetsu Five Mountains Trail 110km 19:15:31 h248
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 13:33:48 h839
2012
30.09 100km JPN15th Muraoka 100 km Ultra Marathon 13:11:42 h165