Held in White Sulphur Springs June 22-24 2015
Day one: White Sulphur Springs to Helena to Great Falls to White Sulphur Springs
Day two: White Sulphur Springs to Harlowton to Livingston to White Sulphur Springs
Day three: White Sulphur Springs to White Sulphur Springs (past Martinsdale and Lennep)
| Pos. | Name | Car no. | Hometown | Miles | Total | Day 1 | Day 2 | Day 3 | Avg. Speed |
| 1 | Jillian Robison | 17 | Valleyford, WA | 493 | 09:04:07 | 04:01:49 | 03:35:49 | 01:26:29 | 54.4 |
| 2 | Dennis Powers | 11 | Ogden, IA | 493 | 09:12:54 | 04:07:48 | 03:39:24 | 01:25:42 | 53.5 |
| 3 | Mike Robison | 5 | Valleyford, WA | 493 | 09:18:51 | 04:05:33 | 03:41:10 | 01:32:08 | 52.9 |
| 4 | Nan Robison | 10 | Spokane Valley, WA | 493 | 09:19:27 | 04:11:43 | 03:41:09 | 01:26:35 | 52.9 |
| 5 | Tom Carnegie | 15 | Spokane Valley, WA | 493 | 09:22:26 | 04:10:11 | 03:42:28 | 01:29:47 | 52.6 |
| 6 | Mike Stormo * | 19 | Davenport, WA | 493 | 09:33:46 | 04:11:25 | 03:37:24 | 01:44:57* | 52.9 |
| 7 | Bill Mullins | 1 | Spokane, WA | 493 | 09:39:26 | 04:18:52 | 03:50:11 | 01:30:23 | 51.1 |
| 8 | Dan Brown | 12 | Laporte City, IA | 493 | 09:40:05 | 04:25:32 | 03:45:26 | 01:29:07 | 51.0 |
| 9 | Gary Ebbert | 4 | Port Orchard, WA | 493 | 09:46:04 | 04:17:00 | 03:48:22 | 01:40:42 | 50.5 |
| 10 | Dan and Dwayne Lukowski | 13 | Kansas City, KS | 493 | 10:08:34 | 04:28:07 | 04:07:13 | 01:33:14 | 48.6 |
| 11 | Rick Bonebright | 3 | Florence, MT | 493 | 10:08:46 | 04:32:00 | 04:03:09 | 01:33:37 | 48.6 |
| 12 | Mike Cuffe | 8 | Eureka, MT | 493 | 10:09:32 | 04:33:18 | 04:04:20 | 01:31:54 | 48.5 |
| 13 | Al Whiteside | 22 | Cheney, WA | 493 | 10:37:54 | 04:49:31 | 04:00:51 | 01:47:32 | 47.1 |
| 14 | Janet Cerovski | 7 | Helena, MT | 493 | 11:08:34 | 05:22:01 | 04:15:07 | 01:31:26 | 44.2 |
| 15 | Gary Yeager | 21 | Cheney, WA | 493 | 11:19:59 | 05:07:29 | 04:24:58 | 01:47:32 | 43.5 |
| 16 | Jamie Allen ** | 18 | Spokane Valley, WA | 411 | 12:07:43 | 06:42:45 | 03:52:49 | 01:32:09 | 49.9 |
| 17 | Tony Cerovski *** | 14 | Helena, MT | 370 | 10:15:46 | 04:11:59 | 04:16:15 | 01:47:32 | 51.7 |
| 18 | Brandon Langel **** | 9 | Kalispell, MT | 356 | 11:15:06 | 04:55:30 | 04:32:04 | 01:47:32 | 45.2 |
| 19 | Garrett Green ***** | 2 | Orange, CA | 274 | 11:23:15 | 06:02:21 | 03:53:16 | 01:27:38 | 51.2 |
| 20 | Alex “Sandy” Watt ****** | 16 | San Diego, CA | 153 | 11:27:02 | 04:52:57 | 04:46:33 | 01:47:32 | 48.6 |
| 21 | Rick Carnegie ******* | 6 | Otis Orchards, WA | 78 | 12:20:57 | 05:46:52 | 04:46:33 | 01:47:32 | 45.3 |
| 22 | Mark Hutchinson ******** | 20 | Spokane, WA | 14 | 12:36:26 | 06:02:21 | 04:46:33 | 01:47:32 |
*Mike Stormo broke carburetor seal on 11th leg to repair broken float hinge - took 15 minute penalty.
**Jamie Allen lost a rod on 4th leg - repaired it and completed 2nd and 3rd day.
***Tony Cerovski had timer trouble on leg 9.
****Brandon Langel lost his Pasco wheel jam nut on leg 8.
*****Garrett Green lost his rear axle before the run began. He repaired
his car and ran the second and third day.
******Alex Watt lost a rod (or main?) on the fourth leg. Became
rear end donor for Garrett Green.
*******Rick Carnegie seized his engine on leg 4.
********Mark Hutchinson withdrew on first leg.