Dubuque, IA
| Rank | Year | Name | Category | Time |
|---|---|---|---|---|
| 1 | 2018 | Tom Rauen | M | 3:58:12 |
| 2 | 2022 | Anthony Kinley | M | 4:13:02 |
| 3 | 2023 | Alex Brandt | M | 4:25:50 |
| 4 | 2018 | Evan Perperis | M | 4:39:26 |
| 5 | 2024 | David Martin | M | 5:18:22 |
| 6 | 2022 | James Locke | M | 5:22:03 |
| 7 | 2018 | Brian Beatty | M | 5:33:05 |
| 8 | 2023 | Ed Thomas | M | 5:37:12 |
| 9 | 2019 | Amy Ewing | F | 5:40:27 |
| 10 | 2019 | Carrie Patz | F | 6:23:02 |
| 11 | 2023 | Samantha Crowley | F | 6:44:46 |
| 12 | 2020 | Josh Meggitt | M | 6:52:23 |
| 13 | 2023 | Maranda Fogle | F | 6:55:43 |
| 14 | 2018 | Ryan Tresnak | M | 7:13:00 |
| 15 | 2020 | Edward Peck | M | 7:26:00 |
| 16 | 2019 | Fritz Wiggert | M | 7:30:39 |
| 17 | 2024 | Will Chasse | M | 7:34:42 |
| 18 | 2024 | Allen Douglas | M | 7:48:15 |
| 19 | 2023 | Ryan Tresnak | M | 8:07:34 |
| 20 | 2024 | Samantha Crowley | F | 8:18:50 |
