Bong-Su (조봉수) Jo
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Ultrarunner since 2009
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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 Korea84,9%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 1 189; Σ finishers = 1 400. 1 189 / 1 400 × 100 = 84.93%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races1 162 km
> 100 km2
> 160 km2
> 200 km1
Longest race312,0 km
16th Trans Korea 312 km West to East — 17/9/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road91,4%
Trail8,6%
Records
HISTORY
9 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/9/2015 | 16th Trans Korea 312 km West to East | 312,00 | ×9 |
| ✓ 2 | 5/6/2015 | 10th Water Love Nagdong River Ultramarathon | 200,00 | ×6 |
| ✓ 3 | 8/8/2015 | 2nd Geumcheongu Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 9/5/2015 | 10th Daejeon Yusung Hot spring Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 5/10/2013 | 7th Suncheon Bay 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 6 | 14/9/2013 | Youngcheon Starfire Ultramarathon | 100,00 | ×3 |
| ✓ 7 | 22/8/2009 | 5th Busan Summer Beach 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 8 | 27/6/2009 | 6th Chungju Lake 100 km | 100,00 | ×3 |
| ✓ 9 | 26/1/2013 | 9th Busan Beach Ultramarathon 50km | 50,00 | ×1 |