Shota (楠原正太) Kusuhara
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Born : 1987
Cat. M35 Ultrarunner since 2009
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
Japan62,5%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 6 102; Σ finishers = 9 761. 6 102 / 9 761 × 100 = 62.51%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 323 km
> 100 km2
> 160 km2
Longest race167,0 km
11th Ultra-Trail Mt. Fuji (UTMF) — 24/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road34,8%
Trail65,2%
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 24.04 | 167km | 11th Ultra-Trail Mt. Fuji |
42:56:32 h | 1114 |
| 2025 | ||||
| 25.04 | 167km | 10th Ultra-Trail Mt. Fuji |
41:24:34 h | 920 |
| 2024 | ||||
| 21.06 | 80km | 3rd Deep Japan Ultra 100 - 80 km |
17:39:27 h | 42 |
| 26.05 | 62km | 16th OSJ Okukuji Trail 60k |
14:18:45 h | 271 |
| 14.04 | 50km | 6th Onigajo Peaks Trail |
11:40:44 h | 125 |
| 2021 | ||||
| 23.07 | 65km | 12th Nozawa Onsen 4100D Mountain Trail |
12:37:13 h | 310 |
| 25.04 | 60km | 6th Tokyo Ultra Marathon - 60 km |
8:36:51 h | 57 |
| 2020 | ||||
| 08.02 | 50km | 11th OSJ Jungle Trail 50K Amami |
5:31:22 h | 24 |
| 2016 | ||||
| 16.07 | 100km | 9th OSJ Ontake 100km Ultra Trail |
17:48:22 h | 754 |
| 13.02 | 50km | 7th OSJ Jungle Trail 50K Amami |
6:39:28 h | 85 |
| 2015 | ||||
| 06.06 | 100km | 25th Aso Caldera Super Marathon 100 km |
12:45:17 h | 630 |
| 2014 | ||||
| 07.06 | 100km | 24th Aso Caldera Super Marathon 100 km |
11:38:03 h | 282 |
| 2010 | ||||
| 10.10 | 71.5km | 18th Hasetsune Cup - Japan Mountain Endurance Race |
18:45:00 h | 984 |
| 20.06 | 100km | 5. Okinoshima 100km Ultra Marathon |
11:36:53 h | 58 |
| 2009 | ||||
| 18.10 | 100km | 15th River Shimanto 100km |
12:01:02 h | 461 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/4/2026 | 11th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×5 |
| ✓ 2 | 25/4/2025 | 10th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×5 |
| ✓ 3 | 16/7/2016 | 9th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 4 | 6/6/2015 | 25th Aso Caldera Super Marathon 100 km | 100,00 | ×3 |
| ✓ 5 | 7/6/2014 | 24th Aso Caldera Super Marathon 100 km | 100,00 | ×3 |
| ✓ 6 | 20/6/2010 | 5. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 18/10/2009 | 15th River Shimanto 100km | 100,00 | ×3 |
| ✓ 8 | 21/6/2024 | 3rd Deep Japan Ultra 100 - 80 km | 80,00 | ×2 |
| ✓ 9 | 10/10/2010 | 18th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 10 | 23/7/2021 | 12th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×1 |
| ✓ 11 | 26/5/2024 | 16th OSJ Okukuji Trail 60k | 62,00 | ×1 |
| ✓ 12 | 25/4/2021 | 6th Tokyo Ultra Marathon - 60 km | 60,00 | ×1 |
| ✓ 13 | 14/4/2024 | 6th Onigajo Peaks Trail | 50,00 | ×1 |
| ✓ 14 | 8/2/2020 | 11th OSJ Jungle Trail 50K Amami | 50,00 | ×1 |
| ✓ 15 | 13/2/2016 | 7th OSJ Jungle Trail 50K Amami | 50,00 | ×1 |