Mayu (堀内まゆ) Horiuchi
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Born : 1975
Cat. W50 Ultrarunner since 2019
12
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
Japan59,9%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 1 204; Σ finishers = 2 009. 1 204 / 2 009 × 100 = 59.93%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races1 380 km
> 100 km6
> 160 km1
> 200 km1
Longest race250,0 km
4th Tokyo Great Race 250km EA — 3/11/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road76,4%
Trail8,7%
Ult.Walk14,9%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0
Records
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 31.05 | 60km | 2nd Shimanami Surround 60km |
8:54:24 h | 113 |
| 28.03 | 100km | 2nd Tokyo Story Ultra Walking |
21:43:04 h | 61 |
| 2025 | ||||
| 08.11 | 128km | 6th Tokyo Great Race |
22:02:13 h | 18 |
| 21.03 | 120km | 1st Izuichi Great Race 120km |
22:30:13 h | 9 |
| 2024 | ||||
| 19.10 | 120km | 8th Santo Ultra Maranic - Keihan Course |
21:55:00 h | 13 |
| 21.04 | 100km | 15th 100 km Ultra Maranic Osaka |
14:10:50 h | 220 |
| 2023 | ||||
| 03.11 | 250km | 4th Tokyo Great Race 250km EA |
2d 00:57:42 h | 15 |
| 11.06 | 84.39km | 7th JAL Mukatsuku Double Marathon |
12:14:29 h | 196 |
| 2022 | ||||
| 05.11 | 128km | 3rd Tokyo Great Race 128km |
22:10:47 h | 19 |
| 12.06 | 84.39km | 6th JAL Mukatsuku Double Marathon |
12:09:56 h | 312 |
| 03.05 | 105km | 1st Miura-Halbinsel-Tour Ultra Walking |
24:19:49 h | 71 |
| 2019 | ||||
| 08.12 | 100km | 2nd Tobishima Ultra Marathon |
13:41:05 h | 169 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/11/2023 | 4th Tokyo Great Race 250km EA | 250,00 | ×7 |
| ✓ 2 | 8/11/2025 | 6th Tokyo Great Race | 128,00 | ×3 |
| ✓ 3 | 5/11/2022 | 3rd Tokyo Great Race 128km | 128,00 | ×3 |
| ✓ 4 | 21/3/2025 | 1st Izuichi Great Race 120km | 120,00 | ×3 |
| ✓ 5 | 19/10/2024 | 8th Santo Ultra Maranic - Keihan Course | 120,00 | ×3 |
| ✓ 6 | 3/5/2022 | 1st Miura-Halbinsel-Tour Ultra Walking | 105,00 | ×3 |
| ✓ 7 | 28/3/2026 | 2nd Tokyo Story Ultra Walking | 100,00 | ×3 |
| ✓ 8 | 21/4/2024 | 15th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 9 | 8/12/2019 | 2nd Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 10 | 11/6/2023 | 7th JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 11 | 12/6/2022 | 6th JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 12 | 31/5/2026 | 2nd Shimanami Surround 60km | 60,00 | ×1 |