Jonker, Isaac Tebello
South AfricaManBorn 19792006 – 2026Runner id 297154
Events
27
2006 – 2026
Best pace
12.999
km/h · 2013
Best finish
162nd
of 2,920 · 2013
Distance raced
2,021
km · splits not double-counted
Pace over time
km/h · higher is faster
Pace over time: 27 races from 2006 to 2026, ranging from 7.95 to 13.01 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 |
|---|---|---|---|---|---|
| 2006-04-15 | 56km | 5:39:21 h | 9.901 | 2991/6881 | |
| 2007-04-07 | 56km | 6:01:37 h | 9.292 | 4023/6532 | |
| 2007-06-17 | 89km | 10:52:22 h | 8.186 | 6723/10052 | |
| 2008-03-22 | 56km | 5:48:45 h | 9.634 | 2878/5778 | |
| 2008-06-15 | 87km | 10:56:39 h | 7.949 | 5754/8631 | |
| 2009-04-11 | 56km | 5:25:41 h | 10.317 | 1782/5827 | |
| 2009-05-24 | 89km | 9:38:49 h | 9.226 | 3483/10003 | |
| 2010-05-30 | 89km | 8:53:27 h | 10.010 | 2585/14339 | |
| 2011-05-29 | 87km | 9:02:14 h | 9.627 | 2239/11080 | |
| 2013-04-20 | Loskop Ultra Marathon 50kmSouth Africa | 50km | 3:50:47 h | 12.999 | 162/2920 |
| 2013-06-02 | 87km | 8:40:52 h | 10.022 | 1166/10186 | |
| 2014-04-12 | Loskop Ultra Marathon 50kmSouth Africa | 50km | 3:55:06 h | 12.761 | 205/2730 |
| 2014-06-01 | 89km | 8:38:00 h | 10.309 | 1573/11991 | |
| 2015-03-21 | 50km | 4:29:55 h | 11.115 | 277/3336 | |
| 2015-04-18 | 50km | 4:06:55 h | 12.150 | 284/3360 | |
| 2015-05-31 | 87km | 8:56:56 h | 9.722 | 1980/13008 | |
| 2016-05-29 | 89km | 8:44:26 h | 10.182 | 2098/14603 | |
| 2017-04-22 | 50km | 4:18:45 h | 11.594 | 457/3094 | |
| 2017-06-04 | 87km | 9:01:42 h | 9.636 | 2369/13851 | |
| 2018-06-10 | 90km | 9:12:43 h | 9.770 | 3412/16484 | |
| 2019-04-13 | 50km | 4:27:33 h | 11.213 | 458/3195 | |
| 2019-06-09 | 87km | 8:47:33 h | 9.895 | 2303/16448 | |
| 2022-08-28 | 90km | 10:42:28 h | 8.405 | 6186/11713 | |
| 2023-06-11 | 87km | 8:43:38 h | 9.969 | 2578/14898 | |
| 2024-06-09 | 87km | 9:38:08 h | 9.029 | 5272/17304 | |
| 2025-06-08 | 90km | 9:37:48 h | 9.346 | 5097/18212 | |
| 2026-06-14 | 86km | 10:24:26 h | 8.263 | 8425/18282 |