Ning (马宁) Ma
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12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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
39,7%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 2 591; Σ finishers = 6 521. 2 591 / 6 521 × 100 = 39.73%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races1 114 km
> 100 km2
> 160 km1
Longest race168,0 km
3rd Ultra Trail Jinan - 168 km — 9/4/2021
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/4/2021 | 3rd Ultra Trail Jinan - 168 km | 168,00 | ×5 |
| ✓ 2 | 25/5/2024 | 12th DL100 Ultra Endurance Race | 106,40 | ×3 |
| ✓ 3 | 27/5/2023 | 5th Baturu Trail Mt. Guanmen 100km | 100,00 | ×3 |
| ✓ 4 | 8/4/2023 | 4th Ultra Trail Jinan - 100 km | 100,00 | ×3 |
| ✓ 5 | 6/10/2020 | 2nd Ultra Trail Jinan - 100 km | 100,00 | ×3 |
| ✓ 6 | 11/5/2019 | 11th The North Face 100 China | 100,00 | ×3 |
| ✓ 7 | 13/7/2018 | 2nd Columbia 100 Ultra Trail Chongli Challenge Race | 100,00 | ×3 |
| ✓ 8 | 2/11/2024 | 9th Ultimate Tsaigu Trail Kuocang - 105 km | 95,00 | ×3 |
| ✓ 9 | 24/10/2020 | 6th Ultimate Tsaigu Trail Kuocang - 85 km | 85,00 | ×2 |
| ✓ 10 | 3/12/2017 | 1st TNF 100 Ultra Trail Challenge Moganshan | 60,00 | ×1 |
| ✓ 11 | 26/10/2019 | 4th Qingdao Laoshan 50K Ultra Trail | 50,00 | ×1 |
| ✓ 12 | 22/4/2018 | 10th The North Face 50 China | 50,00 | ×1 |