| Event | 2015 Chester - Half Marathon |
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| Name | Ian Williamson | Club | UK Athletics | Race Number | 967 | Date | 17/05/2015 |
| Gender | Male | Gender Position | 2518 of 3427 | Category | MSEN | Category Position | 1393 of 1837 |
| 10K | 00:55:09 | Stage Position | 3183 |
| Halfway | 00:59:53 | Stage Position | 3147 |
| 10Mile | 01:32:24 | Stage Position | 3363 |
| 20K | 01:57:32 | Stage Position | 3423 |
| Gun Time | 02:06:22 | Overall Position | 3338 |
| Chip Time | 02:02:32 | Chip Position | 3396 |