Jian (何楗) He
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15
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 ?
China
36,8%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 1 047; Σ finishers = 2 842. 1 047 / 2 842 × 100 = 36.84%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races930 km
> 100 km2
Longest race105,0 km
3rd Chengdu Trail — 28/3/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road17,9%
Trail82,1%
Records
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 28.03 | 105km | 24:56:14 h | 309 | |
| 2025 | ||||
| 14.12 | 45km | 6:46:58 h | 39 | |
| 2024 | ||||
| 20.10 | 52km | 10:28:47 h | 21 | |
| 2022 | ||||
| 17.12 | 60km | 9:56:48 h | 5 | |
| 2021 | ||||
| 21.03 | 50km | 12:07:35 h | 258 | |
| 2020 | ||||
| 31.10 | 56km | 5:29:05 h | 8 | |
| 2019 | ||||
| 20.04 | 80km | 20:33:24 h | 130 | |
| 03.03 | 50km | 7:13:48 h | 40 | |
| 2018 | ||||
| 13.10 | 103.5km | 18:23:38 h | 64 | |
| 19.05 | 60km | 10:01:09 h | 13 | |
| 2017 | ||||
| 03.12 | 60km | 10:51:30 h | 38 | |
| 2016 | ||||
| 22.10 | 50km | 7:53:25 h | 16 | |
| 24.09 | 50km | 11:29:23 h | 45 | |
| 04.09 | 56.5km | 10:46:09 h | 39 | |
| 21.05 | 51.5km | 12:00:22 h | 37 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 28/3/2026 | 3rd Chengdu Trail | 105,00 | ×4 |
| ✓ 2 | 13/10/2018 | 6th Ninghai Ultra Trail - 100km | 103,50 | ×3 |
| ✓ 3 | 20/4/2019 | 5th Ultimate Tsaigu Trail Kuocang - 80 km | 80,00 | ×3 |
| ✓ 4 | 17/12/2022 | 3rd Chengdu 100 | 60,00 | ×2 |
| ✓ 5 | 19/5/2018 | 1st Jiangnan 60 km Run | 60,00 | ×2 |
| ✓ 6 | 3/12/2017 | 1st TNF 100 Ultra Trail Challenge Moganshan | 60,00 | ×2 |
| ✓ 7 | 4/9/2016 | 2nd Trail Mt Wugong | 56,50 | ×2 |
| ✓ 8 | 31/10/2020 | 4th Tonglu Ultra Marathon | 56,00 | ×2 |
| ✓ 9 | 20/10/2024 | 2nd Heming Tao Super Mountain Trail | 52,00 | ×2 |
| ✓ 10 | 21/5/2016 | 3rd Tianmu 7 Ultra Skymarathon | 51,50 | ×1 |
| ✓ 11 | 21/3/2021 | 1st Mingyue Mountrain Ultra Trail | 50,00 | ×1 |
| ✓ 12 | 3/3/2019 | 1st Mountaincalling trail - ChangXing | 50,00 | ×1 |
| ✓ 13 | 22/10/2016 | 1st Peak of Jiang Nan Skyrunning | 50,00 | ×1 |
| ✓ 14 | 24/9/2016 | 5th Jiwu Hangzhou 50K | 50,00 | ×1 |
| ✓ 15 | 14/12/2025 | 6th Chengdu-Luodai Hakka - 45km | 45,00 | ×1 |