Lei (陈雷) Chen
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13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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
2
Countries visited ?
China
Hong Kong
50,0%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 1 639; Σ finishers = 3 278. 1 639 / 3 278 × 100 = 50.00%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 123 km
> 100 km3
> 160 km1
> 24h1
Longest race160,9 km
7th Jiangnan 100 Ultra Trail - 100mi — 16/4/2021
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road9,8%
Trail90,2%
HISTORY
13 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/4/2021 | 7th Jiangnan 100 Ultra Trail - 100mi | 160,93 | ×5 |
| ✓ 2 | 27/6/2025 | 3rd Shuncheng Auto 24h Superman | 110,50 | ×3 |
| ✓ 3 | 12/8/2017 | 3rd Chongli 100 Ultra Sky Trail Challenge | 110,00 | ×3 |
| ✓ 4 | 27/10/2018 | 3rd TransLaoshao 100 km Trailrunning Challenge | 100,00 | ×3 |
| ✓ 5 | 16/12/2017 | 5th The North Face 100 Hong Kong | 100,00 | ×3 |
| ✓ 6 | 28/10/2017 | 2nd TransLaoshao 100 km Trailrunning Challenge | 100,00 | ×3 |
| ✓ 7 | 18/3/2017 | 4th Hangzhou 100 Ultra Trail Race | 100,00 | ×3 |
| ✓ 8 | 9/4/2021 | 3rd Ultra Trail Jinan - 60 km | 60,00 | ×2 |
| ✓ 9 | 3/11/2019 | 1st UTFT White Rabbit Eco Trail | 60,00 | ×2 |
| ✓ 10 | 1/12/2018 | 2nd TNF 100 Ultra Trail Challenge Moganshan | 60,00 | ×2 |
| ✓ 11 | 3/12/2017 | 1st TNF 100 Ultra Trail Challenge Moganshan | 60,00 | ×2 |
| ✓ 12 | 17/10/2020 | 1st Trans Laoshan Trailrunning Race - 50 km | 51,80 | ×1 |
| ✓ 13 | 6/10/2020 | 2nd Ultra Trail Jinan - 50 km | 50,00 | ×1 |