Ishizuka, Naoki
JapanManBorn 19662012 – 2026Runner id 1639243
Events
36
2012 – 2026
Best pace
12.099
km/h · 2025
Best finish
25th
of 685 · 2025
Distance raced
3,806
km · splits not double-counted
Pace over time
km/h · higher is faster
Pace over time: 36 races from 2012 to 2026, ranging from 4.78 to 14.58 kilometres per hour, where higher is faster. A second, age-graded series is drawn above it; the gap between the two is the age credit.
- Actual pace
- Age-graded pace
Results
| Date | Event | Distance | Result | Pace km/h | Placing |
|---|---|---|---|---|---|
| 2012-10-06 | 100km | 20:55:38 h | 4.778 | 1119/2885 | |
| 2014-10-11 | 100km | 19:27:43 h | 5.138 | 754/3190 | |
| 2015-10-10 | 100km | 18:15:44 h | 5.476 | 505/3602 | |
| 2015-11-14 | 100km | 18:14:00 h | 5.484 | 13/81 | |
| 2016-10-08 | 100km | 18:29:43 h | 5.407 | 341/2733 | |
| 2017-05-27 | 100km | 16:56:00 h | 5.906 | 21/106 | |
| 2017-10-07 | 100km | 17:16:27 h | 5.789 | 223/3434 | |
| 2017-11-11 | 100km | 17:48:00 h | 5.618 | 19/90 | |
| 2018-05-26 | 100km | 17:49:00 h | 5.613 | 29/164 | |
| 2018-11-10 | 100km | 17:34:00 h | 5.693 | 19/74 | |
| 2019-05-25 | 100km | 17:22:00 h | 5.758 | 23/198 | |
| 2019-10-12 | 100km | 17:00:07 h | 5.882 | 227/3319 | |
| 2019-11-09 | 100km | 17:03:00 h | 5.865 | 18/86 | |
| 2021-11-13 | 100km | 18:04:00 h | 5.535 | 6/35 | |
| 2022-05-28 | 100km | 17:47:00 h | 5.623 | 20/191 | |
| 2022-10-08 | 100km | 17:30:36 h | 5.711 | 152/1996 | |
| 2022-10-15 | 120km | 21:53:44 h | 5.481 | 9/40 | |
| 2022-11-12 | 100km | 16:57:00 h | 5.900 | 5/49 | |
| 2023-05-03 | Sunny Okayama 100kmJapan | 100km | 17:37:31 h | 5.674 | 33/584 |
| 2023-05-27 | 100km | 17:20:00 h | 5.769 | 35/217 | |
| 2023-10-07 | 100km | 17:24:09 h | 5.746 | 197/2479 | |
| 2023-10-14 | 100km | 17:50:23 h | 5.605 | 19/499 | |
| 2023-10-21 | 100km | 20:32:20 h | 4.869 | 12/236 | |
| 2023-11-11 | 100km | 17:48:00 h | 5.618 | 10/50 | |
| 2024-05-03 | Sunny Okayama 100kmJapan | 100km | 17:44:51 h | 5.635 | 33/635 |
| 2024-05-25 | 100km | 16:35:00 h | 6.030 | 35/241 | |
| 2024-10-12 | 100km | 19:41:33 h | 5.078 | 806/2929 | |
| 2024-10-19 | 100mi | 19:20:05 h | 8.324 | 39/582 | |
| 2024-11-09 | 100km | 19:02:00 h | 5.254 | 23/63 | |
| 2025-05-03 | Sunny Okayama 100kmJapan | 100km | 17:30:59 h | 5.709 | 25/685 |
| 2025-05-10 | Gunma 100km WalkJapan | 225km | 18:35:49 h | 12.099 | 44/461 |
| 2025-05-24 | 100km | 17:29:09 h | 5.719 | 45/216 | |
| 2025-10-11 | 100km | 17:43:01 h | 5.644 | 233/2855 | |
| 2025-11-01 | BIWA100 Ultra WalkJapan | 100km | 17:50:19 h | 5.606 | 30/744 |
| 2025-11-08 | 100km | 17:11:00 h | 5.820 | 10/54 | |
| 2026-05-03 | Sunny Okayama 100kmJapan | 100km | 17:17:27 h | 5.783 | 33/658 |