| Event | 2017 Brooks Snowdonia - Marathon |
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| Name | Jacob Marklew | Club | IRONMAN UK | Race Number | 1316 | Date | 28/10/2017 |
| Gender | Male | Gender Position | 979 of 1596 | Category | MOPEN | Category Position | 352 of 506 |
| Pen-y-Pass | 00:42:58 | Stage Position | 771 |
| 14Miles | 02:04:22 | Stage Position | 826 |
| 23Miles | 03:42:42 | Stage Position | 918 |
| Gun Time | 04:38:06 | Overall Position | 1202 |
| Chip Time | 04:37:20 | Chip Position | 1228 |