Daisuke (土屋大輔) Tsuchiya
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Born : 1976
Cat. M50 Ultrarunner since 2002
7
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 ?Japan
Japan45,4%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 2 988; Σ finishers = 6 588. 2 988 / 6 588 × 100 = 45.36%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races611 km
> 100 km1
Longest race118,0 km
28th Fuji 5 Lakes 118 km Challenge — 22/4/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road68,4%
Trail31,6%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 23.03 | 50km | 32th Mt. Rocco Cannonball Run - 50 km Speed |
10:34:15 h | 153 |
| 2018 | ||||
| 22.04 | 118km | 28th Fuji 5 Lakes 118 km Challenge |
13:09:48 h | 114 |
| 2017 | ||||
| 02.07 | 100km | 1st Nikko 100km Ultramarathon |
13:09:56 h | 640 |
| 04.06 | 100km | 5th Tokyo Shibamata 100 km |
9:41:27 h | 132 |
| 2016 | ||||
| 05.06 | 100km | 4th Tokyo Shibamata 100 km |
9:55:42 h | 123 |
| 2003 | ||||
| 25.10 | 71.5km | 11th Hasetsune Cup - Japan Mountain Endurance Race |
22:51:18 h | 999 |
| 2002 | ||||
| 12.10 | 71.5km | 10th Hasetsune Cup - Japan Mountain Endurance Race |
23:05:42 h | 834 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 22/4/2018 | 28th Fuji 5 Lakes 118 km Challenge | 118,00 | ×5 |
| ✓ 2 | 2/7/2017 | 1st Nikko 100km Ultramarathon | 100,00 | ×4 |
| ✓ 3 | 4/6/2017 | 5th Tokyo Shibamata 100 km | 100,00 | ×4 |
| ✓ 4 | 5/6/2016 | 4th Tokyo Shibamata 100 km | 100,00 | ×4 |
| ✓ 5 | 25/10/2003 | 11th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×3 |
| ✓ 6 | 12/10/2002 | 10th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×3 |
| ✓ 7 | 23/3/2025 | 32th Mt. Rocco Cannonball Run - 50 km Speed | 50,00 | ×2 |