Katsushi (赤池克史) Akaike
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Born : 1981
Cat. M45 Ultrarunner since 2013
13
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
Japan0,9%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 76; Σ finishers = 8 505. 76 / 8 505 × 100 = 0.89%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 136 km
> 100 km1
Longest race120,0 km
20th Muraoka 120 km Ultra Marathon — 24/9/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win2
🏆 Win M2
🏅 Top 34
🏅 Top 3 M4
Longest winning streak1
Current streak0
Records
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 31.05 | 100km | 1st Nara Ultra Marathon |
7:56:36 h | 6 |
| 2025 | ||||
| 28.09 | 88km | 28th Muraoka 88 km Ultra Marathon |
6:51:24 h | 1 🏆 |
| 08.06 | 100km | 13th Hida Takayama 100 km Ultramarathon |
8:02:57 h | 6 |
| 2024 | ||||
| 29.09 | 64km | 27th Muraoka 64 km Ultra Marathon |
5:41:03 h | 4 |
| 19.05 | 100km | 30th Yatsugatake Nobeyama 100 km |
8:46:51 h | 10 |
| 2023 | ||||
| 24.09 | 66km | 26th Muraoka 66 km Ultra Marathon |
5:08:29 h | 1 🏆 |
| 11.06 | 100km | 17th Iwate Ginga 100km Marathon Challenge |
8:05:13 h | 7 |
| 2019 | ||||
| 29.09 | 100km | 22th Muraoka 100 km Ultra Marathon |
8:50:08 h | 5 |
| 2017 | ||||
| 24.09 | 120km | 20th Muraoka 120 km Ultra Marathon |
11:01:49 h | 8 |
| 2016 | ||||
| 25.09 | 100km | 19th Muraoka 100 km Ultra Marathon |
9:16:37 h | 3 🥉 |
| 2015 | ||||
| 27.09 | 66km | 18th Muraoka 66 km Ultra Marathon |
5:46:31 h | 3 🥉 |
| 2014 | ||||
| 28.09 | 66km | 17th Muraoka 66 km Ultra Marathon |
6:10:43 h | 5 |
| 2013 | ||||
| 29.09 | 66km | 16th Muraoka 66 km Ultra Marathon |
7:13:42 h | 30 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/9/2017 | 20th Muraoka 120 km Ultra Marathon | 120,00 | ×3 |
| ✓ 2 | 31/5/2026 | 1st Nara Ultra Marathon | 100,00 | ×3 |
| ✓ 3 | 8/6/2025 | 13th Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 19/5/2024 | 30th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 5 | 11/6/2023 | 17th Iwate Ginga 100km Marathon Challenge | 100,00 | ×3 |
| ✓ 6 | 29/9/2019 | 22th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 25/9/2016 | 19th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 8 | 28/9/2025 | 28th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 9 | 24/9/2023 | 26th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 10 | 27/9/2015 | 18th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 11 | 28/9/2014 | 17th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 12 | 29/9/2013 | 16th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 13 | 29/9/2024 | 27th Muraoka 64 km Ultra Marathon | 64,00 | ×2 |