Chiu-Jung (古秋榮) Ku
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Born : 1968
Cat. M55 Ultrarunner since 2012
11
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 ?Taiwan
Taiwan7,4%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 274; Σ finishers = 3 685. 274 / 3 685 × 100 = 7.44%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races663 km
Longest race100,0 km
7th Zhenxibao (Cinsbu) 100 km Ultramarathon — 20/1/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road93,0%
Trail7,0%
Wins & podiums (ultra)
🏆 Win1
🏆 Win M1
🏅 Top 31
🏅 Top 3 M1
Longest winning streak1
Current streak0
Records
HISTORY
11 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 11.04 | 70km | 2nd Xuhai Ultra Marathon |
7:24:49 h | 4 |
| 2024 | ||||
| 20.04 | 50km | 1st Xuhai Ultra Marathon |
4:32:21 h | 4 |
| 2019 | ||||
| 14.07 | 45.8km | 4th Lovers' Gorge Ultra Run |
5:11:53 h | 49 |
| 20.01 | 100km | 7th Zhenxibao (Cinsbu) 100 km Ultramarathon |
11:38:49 h | 49 |
| 2018 | ||||
| 22.07 | 46km | 3rd Lovers' Gorge Ultra Run |
5:08:41 h | 22 |
| 21.01 | 100km | 6th Zhenxibao (Cinsbu) 100 km Ultramarathon |
12:06:33 h | 78 |
| 2017 | ||||
| 22.10 | 60km | 1st Spread in the wind ultramarathon |
5:18:57 h | 4 |
| 10.09 | 46.3km | 1st CCT Ayu Trail |
6:43:52 h | 1 🏆 |
| 23.07 | 45km | 2nd Lovers' Gorge Ultra Run |
4:00:39 h | 5 |
| 2013 | ||||
| 25.08 | 50km | 1st Shiding 50km Ultramarathon |
5:52:12 h | 52 |
| 2012 | ||||
| 09.09 | 50km | 2nd Flex Power National 50K Track Taichung |
4:31:12 h | 17 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 20/1/2019 | 7th Zhenxibao (Cinsbu) 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 2 | 21/1/2018 | 6th Zhenxibao (Cinsbu) 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 3 | 11/4/2026 | 2nd Xuhai Ultra Marathon | 70,00 | ×3 |
| ✓ 4 | 22/10/2017 | 1st Spread in the wind ultramarathon | 60,00 | ×2 |
| ✓ 5 | 20/4/2024 | 1st Xuhai Ultra Marathon | 50,00 | ×2 |
| ✓ 6 | 25/8/2013 | 1st Shiding 50km Ultramarathon | 50,00 | ×2 |
| ✓ 7 | 9/9/2012 | 2nd Flex Power National 50K Track Taichung | 50,00 | ×2 |
| ✓ 8 | 10/9/2017 | 1st CCT Ayu Trail | 46,30 | ×2 |
| ✓ 9 | 22/7/2018 | 3rd Lovers' Gorge Ultra Run | 46,00 | ×2 |
| ✓ 10 | 14/7/2019 | 4th Lovers' Gorge Ultra Run | 45,80 | ×1 |
| ✓ 11 | 23/7/2017 | 2nd Lovers' Gorge Ultra Run | 45,00 | ×1 |