Seung-Ju (유승주) Yu
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Born : 1967
Cat. M55 Ultrarunner since 2007
8
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
26
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 ?South Korea
South Korea30,2%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 440; Σ finishers = 1 456. 440 / 1 456 × 100 = 30.22%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races827 km
> 100 km1
> 160 km1
> 200 km1
Longest race222,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road42,0%
Trail58,0%
Records
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2018 | ||||
| 21.04 | 58km | 4th Korea 50K |
10:15:08 h | 72 |
| 2016 | ||||
| 28.05 | 100km | 9th Bukhangang 100 km Ultra Marathon Race |
9:54:00 h | 7 |
| 2015 | ||||
| 29.08 | 100km | 9th Incheon Kanghwa Ultramarathon Festival |
12:28:00 h | 29 |
| 08.08 | 100km | 2nd Geumcheongu Ultramarathon |
14:14:00 h | 70 |
| 24.05 | 47km | 14th Jirisan Ultra Marathon |
9:59:00 h | 12 |
| 24.04 | 222km | 11th Pilgrimage to the Holy Land 222 km Ultramarathon |
38:32:00 h | 10 |
| 2014 | ||||
| 30.08 | 100km | 8th Incheon Kanghwa Ultramarathon Festival |
9:58:00 h | 4 |
| 2007 | ||||
| 14.04 | 100km | 5th Cheongnamdae 100km Ultra Marathon |
13:55:00 h | 244 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/4/2015 | 11th Pilgrimage to the Holy Land 222 km Ultramarathon | 222,00 | ×8 |
| ✓ 2 | 28/5/2016 | 9th Bukhangang 100 km Ultra Marathon Race | 100,00 | ×3 |
| ✓ 3 | 29/8/2015 | 9th Incheon Kanghwa Ultramarathon Festival | 100,00 | ×3 |
| ✓ 4 | 8/8/2015 | 2nd Geumcheongu Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 30/8/2014 | 8th Incheon Kanghwa Ultramarathon Festival | 100,00 | ×3 |
| ✓ 6 | 14/4/2007 | 5th Cheongnamdae 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 21/4/2018 | 4th Korea 50K | 58,00 | ×2 |
| ✓ 8 | 24/5/2015 | 14th Jirisan Ultra Marathon | 47,00 | ×1 |