Griffin Nelson has 20 recorded races from Galveston, TX.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-12-21 | Santa Hustle | Galveston 5K | 5K | 47:23 | 1308 |
| 2025-09-13 | 2025 Life Time Chequamegon MTB Festival Chequamegon 40 | Ultra Marathon | 2:40:42 | 60 |
| 2025-07-25 | 2025 Life Time Leadville Stage Race Day 2 - 20 Miles | 2:13:39 | 73 | |
| 2025-07-25 | 2025 Life Time Leadville Stage Race Day 3 - 40 Miles | Ultra Marathon | 3:01:25 | 57 |
| 2025-07-25 | 2025 Life Time Leadville Stage Race Day 1 - 40 Miles | Ultra Marathon | 2:47:22 | 55 |
| 2025-06-28 | Life Time Lutsen 99er presented by Visit Cook County Lutsen99er | Ultra Marathon | 6:25:00 | 115 |
| 2024-09-14 | 2024 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 2:32:07 | 23 |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 1 - 40 Miles | Ultra Marathon | 2:35:10 | 39 |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 2 - 20 Miles | 2:04:09 | 40 | |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 1 and 2 Totals | Ultra Marathon | 4:39:19 | 38 |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 3 - 40 Miles | Ultra Marathon | 3:02:16 | 60 |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Stage Race Series - 3 Day Totals | Ultra Marathon | 7:41:35 | 44 |
| 2024-06-29 | 2024 Life Time Lutsen 99er Lutsen99er | Ultra Marathon | 5:32:49 | 90 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Stage Race Solo - 3 Day Totals | Ultra Marathon | 8:16:34 | 73 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Day 1 - 40 Miles | Ultra Marathon | 2:44:27 | 40 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Day 2 - 20 Miles | 2:28:39 | 132 | |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Day 3 - 40 Miles | Ultra Marathon | 3:03:28 | 52 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Days 1 and 2 Totals | Ultra Marathon | 5:13:06 | 89 |
| 2023-06-24 | 2023 Stages Cycling Lutsen 99er Lutsen99er | Ultra Marathon | 5:51:58 | 48 |
| 2022-06-25 | 2022 Lutsen 99er | Ultra Marathon | 6:26:00 | 134 |