| Name: | Karen Wiersma | |
| Gender: | F | |
| Natonality: | AUS | |
| Date | Event | Overall | F | Distance | Time |
|---|---|---|---|---|---|
| 2003 | 2003-03-08 | Six Foot Track (45km trail) | 552 | 77 | 45.000 km | 7:26:00 h |
| 2005 | 2005-03-20 | Water World Great Ocean Run 45 km (45km trail) | 31 | 4 | 45.000 km | 5:53:07 h |
| 2009 | 2009-05-17 | The Great Ocean Road International Marathon (45km road) | 185 | 30 | 45.000 km | 4:00:24 h |
| 2017 | 2017-12-10 | Gold Coast 50 Road Race (50km road) | 111 | 24 | 50.000 km | 5:40:11 h |
| 2018 | 2018-06-10 | Gold Coast 50 km Super Marathon (50km road) | 13 | 7 | 50.000 km | 5:26:14 h |
| 2018-12-09 | Gold Coast 50 Road Race (50km road) | 146 | 43 | 50.000 km | 5:40:19 h |
| 2019 | 2019-12-08 | Gold Coast 50 Road Race (50km road) | 171 | 50 | 50.000 km | 5:33:56 h |
| 2020 | 2020-12-06 | Gold Coast 50 Road Race (50km road) | 201 | 58 | 50.000 km | 5:35:13 h |
| 2020-08-14 | The Clint Eastwood Backyard Ultra (37h ) | 96 | 25 | 46.942 km | 37:00:00 h |
| 2021 | 2021-11-28 | Gold Coast 50 Road Race (50km road) | 225 | 49 | 50.000 km | 5:36:39 h |
| 2021-08-27 | The Clint Eastwood Backyard Ultra (42h ) | 90 | 26 | 60.354 km | 42:00:00 h |
| 2009 | 2009-12-13 | Kurrawa to Duranbah and Return - 50 km (50km road) | 34 | 7 | 50.000 km | 5:30:06 h |
| 2022 | 2022-08-12 | The Clint Eastwood Backyard Ultra (59h ) | 125 | 35 | 67.060 km | 59:00:00 h |
| 2022-12-04 | Gold Coast 50 Road Race (50km road) | 277 | 74 | 50.000 km | 5:44:42 h |
| 2023 | 2023-12-03 | Gold Coast 50 Road Race (50km road) | 376 | 99 | 50.000 km | 6:26:58 h |