Yu-Som (변유섬) Byun
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Born : 1979
Cat. M45 Ultrarunner since 2022
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
23
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 Korea43,4%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 1 344; Σ finishers = 3 094. 1 344 / 3 094 × 100 = 43.44%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races602 km
> 100 km1
Longest race121,0 km
7th High Trail Nine Peaks - 9 Peaks — 27/10/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 26.04 | 50km | 10th Korea 50K |
12:01:00 h | 548 |
| 2024 | ||||
| 25.10 | 86km | 8th High Trail Nine Peaks - 7 Peaks |
12:29:42 h | 8 |
| 18.05 | 100km | 6th TNF 100 Korea |
17:58:20 h | 26 |
| 27.04 | 50km | 9th Korea 50K |
8:06:13 h | 76 |
| 2023 | ||||
| 27.10 | 121km | 7th High Trail Nine Peaks - 9 Peaks |
37:11:10 h | 77 |
| 03.06 | 50km | 10th Geoje Jimaek Trail Run - 50 km |
8:43:57 h | 55 |
| 20.05 | 50km | 5th TNF 50 Korea |
7:42:10 h | 84 |
| 29.04 | 50km | 8th Korea 50K |
11:05:52 h | 215 |
| 2022 | ||||
| 27.10 | 45km | 6th High Trail Nine Peaks - 5 Peaks |
11:56:25 h | 264 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 27/10/2023 | 7th High Trail Nine Peaks - 9 Peaks | 121,00 | ×5 |
| ✓ 2 | 18/5/2024 | 6th TNF 100 Korea | 100,00 | ×4 |
| ✓ 3 | 25/10/2024 | 8th High Trail Nine Peaks - 7 Peaks | 86,00 | ×3 |
| ✓ 4 | 26/4/2025 | 10th Korea 50K | 50,00 | ×2 |
| ✓ 5 | 27/4/2024 | 9th Korea 50K | 50,00 | ×2 |
| ✓ 6 | 3/6/2023 | 10th Geoje Jimaek Trail Run - 50 km | 50,00 | ×2 |
| ✓ 7 | 20/5/2023 | 5th TNF 50 Korea | 50,00 | ×2 |
| ✓ 8 | 29/4/2023 | 8th Korea 50K | 50,00 | ×2 |
| ✓ 9 | 27/10/2022 | 6th High Trail Nine Peaks - 5 Peaks | 45,00 | ×1 |