Tsuneo (山崎常生) Yamazaki
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Born : 1980
Cat. M45 Ultrarunner since 2013
14
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 ?Japan
Switzerland
JapanSwitzerland6,9%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 308; Σ finishers = 4 485. 308 / 4 485 × 100 = 6.87%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 117 km
> 100 km1
Longest race105,0 km
7th Aga Ultra Marathon - 100km — 25/9/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road27,3%
Trail72,7%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 25.09 | 105km | 7th Aga Ultra Marathon - 100km |
9:56:19 h | 2 🥈 |
| 05.07 | 100km | 3rd Shiga Kogen 100 |
15:35:28 h | 20 |
| 2024 | ||||
| 09.08 | 100km | 7. Swiss Alps 100 - 100km |
19:15:17 h | 20 |
| 06.07 | 100km | 2nd Shiga Kogen 100 |
15:38:42 h | 18 |
| 19.05 | 100km | 30th Yatsugatake Nobeyama 100 km |
10:38:23 h | 94 |
| 2023 | ||||
| 04.11 | 50mi | 10th Nakanoto Treasure Trail Run Festival |
8:40:21 h | 8 |
| 24.09 | 100km | 5th Aga Ultra Marathon - 100km |
10:08:44 h | 6 |
| 2022 | ||||
| 23.10 | 54km | 9th Shigakogen Extreme Trail |
7:57:18 h | 11 |
| 2017 | ||||
| 10.09 | 50km | 9th Shinshu-Togakushi Trail Run Race |
6:08:26 h | 11 |
| 01.07 | 80km | 7th Utsukushigahara 80 km Trail Run |
9:19:54 h | 73 |
| 2016 | ||||
| 24.09 | 50km | 8th Shinshu-Togakushi Trail Run Race |
5:53:32 h | 7 |
| 16.07 | 65km | 7th Nozawa Onsen 4100D Mountain Trail |
8:20:56 h | 16 |
| 2014 | ||||
| 05.07 | 80km | 4th Utsukushigahara 80 km Trail Run |
10:50:30 h | 13 |
| 2013 | ||||
| 15.09 | 53km | 3rd Hakuba Int. Trail Run |
5:48:16 h | 23 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/9/2025 | 7th Aga Ultra Marathon - 100km | 105,00 | ×3 |
| ✓ 2 | 5/7/2025 | 3rd Shiga Kogen 100 | 100,00 | ×3 |
| ✓ 3 | 9/8/2024 | 7. Swiss Alps 100 - 100km | 100,00 | ×3 |
| ✓ 4 | 6/7/2024 | 2nd Shiga Kogen 100 | 100,00 | ×3 |
| ✓ 5 | 19/5/2024 | 30th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 6 | 24/9/2023 | 5th Aga Ultra Marathon - 100km | 100,00 | ×3 |
| ✓ 7 | 4/11/2023 | 10th Nakanoto Treasure Trail Run Festival | 80,47 | ×2 |
| ✓ 8 | 1/7/2017 | 7th Utsukushigahara 80 km Trail Run | 80,00 | ×2 |
| ✓ 9 | 5/7/2014 | 4th Utsukushigahara 80 km Trail Run | 80,00 | ×2 |
| ✓ 10 | 16/7/2016 | 7th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×2 |
| ✓ 11 | 23/10/2022 | 9th Shigakogen Extreme Trail | 54,00 | ×1 |
| ✓ 12 | 15/9/2013 | 3rd Hakuba Int. Trail Run | 53,00 | ×1 |
| ✓ 13 | 10/9/2017 | 9th Shinshu-Togakushi Trail Run Race | 50,00 | ×1 |
| ✓ 14 | 24/9/2016 | 8th Shinshu-Togakushi Trail Run Race | 50,00 | ×1 |