Bok-Geun (유복근) Yu
ID 740825
Born : 1961 Cat. M65 Ultrarunner since 2004 KOR
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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 ?KORSouth Korea
14,4%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 138; Σ finishers = 958. 138 / 958 × 100 = 14.41%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed9
Km — ultra races713 km
Longest race100,0 km
10th Ulsan Taewha River 100 km Ultramarathon — 15/6/2019

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road79,2%
Trail20,8%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M2
Longest winning streak0
Current streak0

Records

50 km4h17'43100 km10h10'0012 h93,50 km

HISTORY

9 race(s)
DateRacePerf.Rk
2019
15.06 100km KOR10th Ulsan Taewha River 100 km Ultramarathon 10:13:44 h6
2018
28.07 50km KOR1st Tongyeong Ultra Marathon - 50km 5:24:00 h4
16.06 50km KOR9th Ulsan Taewha River 50 km Ultramarathon 4:17:43 h7
26.05 48km KOR6th Geoje Jimaek Trail Run - 48 km 14:25:39 h101
2015
20.06 100km KOR6th Ulsan Taewha River 100 km Ultramarathon 10:14:46 h7
2006
02.07 71km KOR1st Daegu 9 Sanjongsan Mountain Ultra Marathon 16:08:00 h4
2005
21.08 100km KOR1st Busan Summer Beach 100 km Ultra Marathon 10:10:00 h4
2004
14.08 100km KORChampion Chip 9 Tp 9 Ultra Marathon 10:52:46 h2 🥈
24.07 12h KOR3rd Magdaljaja 12h Ultra Marathon 93.500 km12