Atsushi (松原敦) Matsubara
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Born : 1961
Cat. M65 Ultrarunner since 2013
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
32
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
Japan57,3%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 5 092; Σ finishers = 8 887. 5 092 / 8 887 × 100 = 57.30%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 140 km
Longest race100,0 km
5th Tokyo Shibamata 100 km — 4/6/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2023 | ||||
| 01.07 | 8h | 29th 8-Hour Endurance Race Tokorozawa |
49.000 km | 146 |
| 08.04 | 71km | 18th Toda Saiko 70 km |
8:32:08 h | 167 |
| 2022 | ||||
| 03.07 | 8h | 28th 8-Hour Endurance Race Tokorozawa |
58.800 km | 125 |
| 09.04 | 71km | 17th Toda Saiko 70 km |
8:28:38 h | 110 |
| 2019 | ||||
| 13.04 | 70km | 14th Toda Saiko 70 km |
8:08:34 h | 339 |
| 2018 | ||||
| 14.04 | 70km | 13th Toda Saiko 70 km |
7:37:25 h | 243 |
| 2017 | ||||
| 04.06 | 100km | 5th Tokyo Shibamata 100 km |
13:13:26 h | 1011 |
| 08.04 | 70km | 12th Toda Saiko 70 km |
7:18:46 h | 210 |
| 2016 | ||||
| 05.06 | 100km | 4th Tokyo Shibamata 100 km |
13:06:36 h | 884 |
| 09.04 | 70km | 11th Toda Saiko 70 km |
7:28:50 h | 159 |
| 2015 | ||||
| 06.06 | 100km | 3rd Tokyo Shibamata 100 km |
12:39:38 h | 716 |
| 11.04 | 70km | 10th Toda Saiko 70 km |
7:37:21 h | 201 |
| 2014 | ||||
| 01.06 | 100km | 2nd Tokyo Shibamata 100 km |
13:19:14 h | 361 |
| 12.04 | 70km | 9th Toda Saiko 70 km |
7:51:16 h | 226 |
| 2013 | ||||
| 13.04 | 70km | 8th Toda Saiko 70 km |
8:08:23 h | 209 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 4/6/2017 | 5th Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 2 | 5/6/2016 | 4th Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 3 | 6/6/2015 | 3rd Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 4 | 1/6/2014 | 2nd Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 5 | 8/4/2023 | 18th Toda Saiko 70 km | 71,00 | ×2 |
| ✓ 6 | 9/4/2022 | 17th Toda Saiko 70 km | 71,00 | ×2 |
| ✓ 7 | 13/4/2019 | 14th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 8 | 14/4/2018 | 13th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 9 | 8/4/2017 | 12th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 10 | 9/4/2016 | 11th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 11 | 11/4/2015 | 10th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 12 | 12/4/2014 | 9th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 13 | 13/4/2013 | 8th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 14 | 3/7/2022 | 28th 8-Hour Endurance Race Tokorozawa | 58,80 | ×1 |
| ✓ 15 | 1/7/2023 | 29th 8-Hour Endurance Race Tokorozawa | 49,00 | ×1 |