Li-Bi (程利笔) Cheng
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8
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 ?
China
72,0%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 1 155; Σ finishers = 1 605. 1 155 / 1 605 × 100 = 71.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races596 km
> 100 km1
Longest race106,0 km
2nd Panda Trail by UTMB - MPT 106km — 21/11/2020
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road25,2%
Trail74,8%
Records
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2023 | ||||
| 14.10 | 100km | 25:55:55 h | 242 | |
| 12.08 | 100km | 14:13:05 h | 84 | |
| 2022 | ||||
| 03.10 | 50km | 11:31:40 h | 92 | |
| 2020 | ||||
| 21.11 | 106km | 25:15:04 h | 161 | |
| 2019 | ||||
| 14.12 | 70km | 14:51:28 h | 175 | |
| 2018 | ||||
| 08.12 | 60km | 12:23:09 h | 232 | |
| 2017 | ||||
| 18.11 | 60km | 11:19:06 h | 108 | |
| 30.09 | 50km | 6:18:03 h | 69 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/11/2020 | 2nd Panda Trail by UTMB - MPT 106km | 106,00 | ×4 |
| ✓ 2 | 14/10/2023 | 5th Jiangnan Skyrace - 100 km | 100,00 | ×4 |
| ✓ 3 | 12/8/2023 | 5th Dianchi 100K Ultra Marathon | 100,00 | ×4 |
| ✓ 4 | 14/12/2019 | 4th Engine Bird Chuxiong - Mt. Zixi Trail | 70,00 | ×3 |
| ✓ 5 | 8/12/2018 | 3rd Engine Bird Chuxiong - Mt. Zixi Trail | 60,00 | ×2 |
| ✓ 6 | 18/11/2017 | 2nd Engine Bird Chuxiong - Mt. Zixi Trail | 60,00 | ×2 |
| ✓ 7 | 3/10/2022 | 1st Yunnan Fengqing Ultra Trail | 50,00 | ×2 |
| ✓ 8 | 30/9/2017 | Fuxian Lake Highland Ultramarathon 50K - Open race | 50,00 | ×2 |