Satoyuki (片山智之) Katayama
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13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
65,3%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 4 834; Σ finishers = 7 400. 4 834 / 7 400 × 100 = 65.32%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races951 km
Longest race100,0 km
14th Echigo Kubikino 100km Ultramarathon — 9/10/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road69,7%
Trail30,3%
Records
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2023 | ||||
| 17.06 | 50km | 7:33:28 h | 221 | |
| 2022 | ||||
| 09.10 | 100km | 13:52:01 h | 821 | |
| 25.06 | 48km | 8:04:43 h | 190 | |
| 2019 | ||||
| 13.07 | 65km | 12:02:39 h | 171 | |
| 2018 | ||||
| 14.11 | 58km | 7:55:05 h | 84 | |
| 14.07 | 65km | 13:58:00 h | 137 | |
| 17.06 | 100km | 12:57:42 h | 493 | |
| 2017 | ||||
| 04.11 | 45km | 5:35:09 h | 41 | |
| 2016 | ||||
| 09.10 | 100km | 13:20:44 h | 1201 | |
| 2015 | ||||
| 30.08 | 60km | 9:08:00 h | 95 | |
| 2014 | ||||
| 12.10 | 60km | 7:09:42 h | 171 | |
| 2013 | ||||
| 15.09 | 100km | 13:22:48 h | 913 | |
| 21.04 | 100km | 12:47:57 h | 309 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/10/2022 | 14th Echigo Kubikino 100km Ultramarathon | 100,00 | ×3 |
| ✓ 2 | 17/6/2018 | 2nd Nikko 100km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 9/10/2016 | 11th Echigo Kubikino 100km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 15/9/2013 | 13th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 21/4/2013 | 23rd Fuji 5 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 6 | 13/7/2019 | 10th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×2 |
| ✓ 7 | 14/7/2018 | 9th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×2 |
| ✓ 8 | 30/8/2015 | 18th Mt. Tateyama Climbathon | 60,00 | ×2 |
| ✓ 9 | 12/10/2014 | 10th Echigo Kubikino 60km Ultramarathon | 60,00 | ×2 |
| ✓ 10 | 14/11/2018 | 3rd Myoko Ultra Run rAce 18 | 58,00 | ×2 |
| ✓ 11 | 17/6/2023 | 2nd KTF Trail running race - Rockin Bear | 50,00 | ×1 |
| ✓ 12 | 25/6/2022 | 1st KTF Trail running race - Rockin Bear | 48,00 | ×1 |
| ✓ 13 | 4/11/2017 | 2nd Myoko Ultra Run rAce 18 | 45,00 | ×1 |