Yi (宋毅) Song
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Born : 1981
Cat. M45 Ultrarunner since 2014
6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
19
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
China53,0%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 1 142; Σ finishers = 2 154. 1 142 / 2 154 × 100 = 53.02%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races411 km
Longest race100,0 km
We-Cycling Shanghai 100K — 31/5/2014
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road24,3%
Trail75,7%
Records
HISTORY
6 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2020 | ||||
| 24.10 | 55km | 6th Ultimate Tsaigu Trail Kuocang - 55 km |
10:13:07 h | 608 |
| 2018 | ||||
| 11.08 | 96km | 1st Inner Mongolia 100km Ultra Marathon - Laoniuwan |
24:56:14 h | 207 |
| 2017 | ||||
| 26.11 | 50km | 1st Shengzhou Trail Challenge |
8:39:30 h | 150 |
| 22.04 | 50km | 3rd Ultimate Tsaigu Trail Kuocang - 50 km |
7:31:49 h | 82 |
| 25.03 | 60km | 2nd Jinhua Beishan Peak - 60 km |
13:41:42 h | 57 |
| 2014 | ||||
| 31.05 | 100km | We-Cycling Shanghai 100K |
21:56:00 h | 44 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 31/5/2014 | We-Cycling Shanghai 100K | 100,00 | ×5 |
| ✓ 2 | 11/8/2018 | 1st Inner Mongolia 100km Ultra Marathon - Laoniuwan | 96,00 | ×5 |
| ✓ 3 | 25/3/2017 | 2nd Jinhua Beishan Peak - 60 km | 60,00 | ×3 |
| ✓ 4 | 24/10/2020 | 6th Ultimate Tsaigu Trail Kuocang - 55 km | 55,00 | ×2 |
| ✓ 5 | 26/11/2017 | 1st Shengzhou Trail Challenge | 50,00 | ×2 |
| ✓ 6 | 22/4/2017 | 3rd Ultimate Tsaigu Trail Kuocang - 50 km | 50,00 | ×2 |