Previously known as the Dam to Dam, the Dam to DSM Half Marathon is one of Iowa’s most popular races, drawing thousands of runners each year to experience its unique point-to-point course from Saylorville Dam to downtown Des Moines. The race is known for its fast, scenic route, beginning near the massive Saylorville Reservoir before taking runners through a mix of rural landscapes, forested trails, and urban streets, with the final miles winding into Des Moines’ bustling city center.\n\nA major
Adjusted Time
4:01:31
Time difference: +1.5 minutes compared to a flat, road, temperate course.
| Surface | Road |
| Elevation Gain | 67m |
| Elevation High | 285m |
| Elevation Low | 241m |
| Predicted High | 28°C |
| Predicted Low | 12°C |
| Chance of Rain | 1% |