Jun-Su (이준수) Lee
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Born : 1978
Cat. M45 Ultrarunner since 2018
20
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 Korea6,2%
Rank quotient ?This runner's calculation uses 20 eligible race(s): Σ(rank − 1) = 677; Σ finishers = 10 833. 677 / 10 833 × 100 = 6.25%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed20
Km — ultra races1 109 km
> 100 km1
Longest race107,0 km
12th TransJeju by UTMB - Jeju100K — 18/10/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road4,5%
Trail91,0%
Stage4,5%
Records
HISTORY
20 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 07.06 | 48km | 2nd korea 50k Chuncheon |
7:56:07 h | 51 |
| 16.05 | 100km | 8th TNF 100 Korea |
18:10:34 h | 35 |
| 2025 | ||||
| 18.10 | 107km | 12th TransJeju by UTMB - Jeju100K |
17:21:30 h | 80 |
| 06.09 | 50km | 2nd Dynafit Taebaek Trail |
6:40:20 h | 17 |
| 29.06 | 48km | 1st korea 50k Chuncheon |
8:28:01 h | 20 |
| 17.05 | 50km | 7th TNF 50 Korea |
5:35:20 h | 9 |
| 26.04 | 50km | 10th Korea 50K |
7:24:59 h | 18 |
| 2024 | ||||
| 19.10 | 52km | 6th Seoul Ultra Trail 50K |
7:01:38 h | 11 |
| 12.10 | 52km | 11th TransJeju by UTMB 50 |
6:49:41 h | 22 |
| 15.06 | 50km | 13th Ulsan Taewha River 50 km Ultramarathon |
5:29:57 h | 39 |
| 18.05 | 50km | 6th TNF 50 Korea |
6:22:53 h | 25 |
| 27.04 | 50km | 9th Korea 50K |
7:42:21 h | 45 |
| 2023 | ||||
| 07.10 | 52km | 10th TransJeju by UTMB 50 |
6:59:24 h | 81 |
| 20.05 | 50km | 5th TNF 50 Korea |
6:50:00 h | 28 |
| 2022 | ||||
| 15.10 | 50km | 9th Transjeju Int. Trail Run 50 |
7:25:19 h | 80 |
| 17.09 | 50km | 7th Korea 50K |
10:54:41 h | 50 |
| 2021 | ||||
| 06.11 | 50km | 8th Transjeju Int. Trail Run 50 |
6:39:31 h | 17 |
| 2019 | ||||
| 12.10 | 50km | 7th Transjeju Int. Trail Run 50 |
7:15:20 h | 25 |
| 19.05 | 50km | 4th TNF 50 Korea |
6:18:48 h | 24 |
| 2018 | ||||
| 19.05 | 50km | 3rd TNF 50 Korea |
6:38:14 h | 20 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 18/10/2025 | 12th TransJeju by UTMB - Jeju100K | 107,00 | ×4 |
| ✓ 2 | 16/5/2026 | 8th TNF 100 Korea | 100,00 | ×3 |
| ✓ 3 | 19/10/2024 | 6th Seoul Ultra Trail 50K | 52,00 | ×2 |
| ✓ 4 | 12/10/2024 | 11th TransJeju by UTMB 50 | 52,00 | ×2 |
| ✓ 5 | 7/10/2023 | 10th TransJeju by UTMB 50 | 52,00 | ×2 |
| ✓ 6 | 6/9/2025 | 2nd Dynafit Taebaek Trail | 50,00 | ×1 |
| ✓ 7 | 17/5/2025 | 7th TNF 50 Korea | 50,00 | ×1 |
| ✓ 8 | 26/4/2025 | 10th Korea 50K | 50,00 | ×1 |
| ✓ 9 | 15/6/2024 | 13th Ulsan Taewha River 50 km Ultramarathon | 50,00 | ×1 |
| ✓ 10 | 18/5/2024 | 6th TNF 50 Korea | 50,00 | ×1 |
| ✓ 11 | 27/4/2024 | 9th Korea 50K | 50,00 | ×1 |
| ✓ 12 | 20/5/2023 | 5th TNF 50 Korea | 50,00 | ×1 |
| ✓ 13 | 15/10/2022 | 9th Transjeju Int. Trail Run 50 | 50,00 | ×1 |
| ✓ 14 | 17/9/2022 | 7th Korea 50K | 50,00 | ×1 |
| ✓ 15 | 6/11/2021 | 8th Transjeju Int. Trail Run 50 | 50,00 | ×1 |
| ✓ 16 | 12/10/2019 | 7th Transjeju Int. Trail Run 50 | 50,00 | ×1 |
| ✓ 17 | 19/5/2019 | 4th TNF 50 Korea | 50,00 | ×1 |
| ✓ 18 | 19/5/2018 | 3rd TNF 50 Korea | 50,00 | ×1 |
| ✓ 19 | 7/6/2026 | 2nd korea 50k Chuncheon | 48,00 | ×1 |
| ✓ 20 | 29/6/2025 | 1st korea 50k Chuncheon | 48,00 | ×1 |