Chang-Gu (서창구) Seo
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Born : 1960
Cat. M65 Ultrarunner since 2003
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
17
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 Korea58,8%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 127; Σ finishers = 216. 127 / 216 × 100 = 58.80%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races336 km
Longest race100,0 km
1st Busan Summer Beach 100 km Ultra Marathon — 21/8/2005
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road70,2%
Trail29,8%
Records
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2009 | ||||
| 12.09 | 65km | 3rd Busan 5 Dalsan-ri Ultramarathon |
15:07:00 h | 7 |
| 2006 | ||||
| 02.07 | 71km | 1st Daegu 9 Sanjongsan Mountain Ultra Marathon |
18:38:00 h | 14 |
| 2005 | ||||
| 21.08 | 100km | 1st Busan Summer Beach 100 km Ultra Marathon |
13:18:00 h | 27 |
| 2003 | ||||
| 17.05 | 100km | 1st Homigot Moonlight Sonata 100 km |
12:43:53 h | 83 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/8/2005 | 1st Busan Summer Beach 100 km Ultra Marathon | 100,00 | ×5 |
| ✓ 2 | 17/5/2003 | 1st Homigot Moonlight Sonata 100 km | 100,00 | ×5 |
| ✓ 3 | 2/7/2006 | 1st Daegu 9 Sanjongsan Mountain Ultra Marathon | 71,00 | ×4 |
| ✓ 4 | 12/9/2009 | 3rd Busan 5 Dalsan-ri Ultramarathon | 65,00 | ×3 |