| Event | 2012 Dublin - Marathon |
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| Name | Edward Groblewski | Club | RKS Lodz | Race Number | 10195 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 91 of 8779 | Category | M50 | Category Position | 1 of 513 |
| to 10K | 00:40:03 | Stage Position | 170 |
| 10K to Half | 00:43:14 | Stage Position | 107 |
| Half to 20Mile | 00:42:16 | Stage Position | 68 |
| Gun Time | 02:46:37 | Overall Position | 101 |
| Chip Time | 02:46:37 | Chip Position | 99 |