Xin-Xin (徐新新) Xu
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Born : 1968
Cat. M55 Ultrarunner since 2015
8
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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
China35,3%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 879; Σ finishers = 2 492. 879 / 2 492 × 100 = 35.27%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races571 km
> 100 km1
Longest race105,0 km
3rd MaXi Race China Jiangshan 105 km — 20/10/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road8,8%
Trail91,2%
Records
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 31.03 | 50km | 1st Lishui Ultra Marathon |
4:24:29 h | 266 |
| 2018 | ||||
| 20.10 | 105km | 3rd MaXi Race China Jiangshan 105 km |
27:02:54 h | 147 |
| 2017 | ||||
| 26.11 | 50km | 1st Shengzhou Trail Challenge |
9:02:21 h | 166 |
| 22.10 | 55km | 2nd Peak of Jiang Nan Skyrunning |
14:24:56 h | 38 |
| 26.08 | 100km | 1st Garmin·Xtrail Qilian 100K |
19:53:46 h | 76 |
| 18.03 | 100km | 4th Hangzhou 100 Ultra Trail Race |
26:44:21 h | 42 |
| 2016 | ||||
| 24.09 | 55km | Jinhua Autumn Trail |
13:59:14 h | 64 |
| 2015 | ||||
| 28.03 | 56km | 1st Wuzhou Trail 56km |
12:03:56 h | 88 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 20/10/2018 | 3rd MaXi Race China Jiangshan 105 km | 105,00 | ×4 |
| ✓ 2 | 26/8/2017 | 1st Garmin·Xtrail Qilian 100K | 100,00 | ×4 |
| ✓ 3 | 18/3/2017 | 4th Hangzhou 100 Ultra Trail Race | 100,00 | ×4 |
| ✓ 4 | 28/3/2015 | 1st Wuzhou Trail 56km | 56,00 | ×2 |
| ✓ 5 | 22/10/2017 | 2nd Peak of Jiang Nan Skyrunning | 55,00 | ×2 |
| ✓ 6 | 24/9/2016 | Jinhua Autumn Trail | 55,00 | ×2 |
| ✓ 7 | 31/3/2019 | 1st Lishui Ultra Marathon | 50,00 | ×2 |
| ✓ 8 | 26/11/2017 | 1st Shengzhou Trail Challenge | 50,00 | ×2 |