EMC DAM to DSM
Typically 61–81°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2026
66–83°F
rain
2025
54–76°F
dry
2024
56–81°F
dry
2023
63–85°F
dry
2022
56–80°F
rain
2021
67–90°F
dry
2020
68–86°F
rain
2019
66–86°F
dry
2018
63–87°F
dry
2017
59–81°F
dry
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About this race
Iowa's Greatest Running Tradition.
Since 1980, more than 140,000 runners have made running from the quiet and calm of the Saylorville Dam to the heat and high-rises of downtown Des Moines one of the greatest running traditions in central Iowa. Whether you’re a weekend warrior, a first-timer, or a diehard this iconic running event is for you.
SAYLORVILLE DAM
There is something unparalleled about standing on top of the Saylorville Dam and looking out at the high-rise buildings on the horizon knowing that you will conquer the distance in between. After crossing the dam athletes will travel south through the fields and rural beauty of Polk County.
DOWNTOWN DES MOINES
Runners traverse I-35 at the Morningstar bridge and continue into the Northside Neighborhoods, along the Des Moines River at Birdland Park and enter into Downtown Des Moines. Athletes will finish their half-marathon journey by crossing the Des Moines River and passing the World Food Prize Building. With the finish line behind you, there's a huge party awaiting you at Cowles Commons across from The Des Moines Civic Center.
Course map
Train with a club
Run clubs near Polk City to train with before race day.
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