| Jon Mackay's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| ABC 50 (Anza Borrego 50) | California, US | 48 | Saturday, December 2, 2023 | 12:47:04.00 |
| The Peak 2023 (Half Marathon) | California, US | 47 | Saturday, July 15, 2023 | 02:56:26.00 |
| Jon Mackay's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| ABC 50 (Anza Borrego 50) | California, US | 48 | Saturday, December 2, 2023 | 12:47:04.00 |
| The Peak 2023 (Half Marathon) | California, US | 47 | Saturday, July 15, 2023 | 02:56:26.00 |