The North Face Endurance Challenge Iowa
| Rank | Year | Name | Category | Result |
|---|---|---|---|---|
| 1 | 2007 | Steve Plhlmeyer | M 40-49 | 4:01:08 |
| 2 | 2007 | Marc Hollander | M 30-39 | 4:06:43 |
| 3 | 2007 | Randy Peterson | M 40-49 | 4:18:07 |
| 4 | 2007 | Benton Stamper | M 20-29 | 4:24:29 |
| 5 | 2007 | Mike Christensen | M 40-49 | 4:30:03 |
| 6 | 2007 | Kevin Bradshaw | M 30-39 | 4:34:22 |
| 7 | 2007 | Patricia Terry | F 40-49 | 4:35:56 |
| 8 | 2007 | Mary Mouw | F 30-39 | 4:36:21 |
| 9 | 2007 | Greg Hanson | M 30-39 | 4:54:14 |
| 10 | 2007 | Jeremy Dunlavey | M 30-39 | 4:59:39 |
| 11 | 2007 | Bruce Gilbert | M 50-59 | 5:13:29 |
| 12 | 2007 | Paul Gilbert | M 20-29 | 5:13:29 |
| 13 | 2007 | Stephanie Clemens | F 30-39 | 5:14:07 |
| 14 | 2007 | Bill Burgess | M 20-29 | 5:15:39 |
| 15 | 2007 | Todd Roorda | M 30-39 | 5:16:05 |
| 16 | 2007 | Jaime Hogan | F 20-29 | 5:18:31 |
| 17 | 2007 | Amber Baybayan | F 30-39 | 5:18:31 |
| 18 | 2007 | Perry Mcgee | M 30-39 | 5:21:44 |
| 19 | 2007 | Mark Kincaid | M 40-49 | 5:26:47 |
| 20 | 2007 | Nolan Ming | M 30-39 | 5:30:45 |
| 21 | 2007 | Wes Cronin | M 20-29 | 5:39:18 |
| 22 | 2007 | Rachele Kugel | F 40-49 | 5:54:48 |
| 23 | 2007 | Patrick Hanlon | M 50-59 | 5:56:04 |
| 24 | 2007 | Alex Hoffman | M 20-29 | 7:07:32 |
| 25 | 2007 | Adam Hoffman | M 20-29 | 7:20:03 |
| 26 | 2007 | Dick Hogan | M 60-69 | 8:25:21 |