| Event | 2017 Cardiff University Cardiff - Half Marathon |
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| Name | Mark Jefferis | Club | Race Number | 25991 | Date | 01/10/2017 | |
| Gender | Male | Gender Position | 9292 of 10114 | Category | M50-54 | Category Position | 797 of 875 |
| Team | |||||||
| 5K | 00:36:20 | Stage Position | 16564 |
| 10K | 01:13:36 | Stage Position | 16494 |
| 15K | 01:53:53 | Stage Position | 16645 |
| 20K | 02:35:51 | Stage Position | 16644 |
| Chip Time | 02:44:19 | Chip Position | 16662 |