Race Discovery
Platte River Half-Marathon, Relay & 5k
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Platte River Half-Marathon, Relay & 5k

Littleton, Colorado, United States
Apr 07, 2027 – Apr 11, 2027
Running

About this race

Welcome to the Platte River Half Marathon, Relay & 5k race, one of the most exciting and popular races in the Denver Metro Area! This race is held annually in Littleton, CO. We’re thrilled to announce that registration for our upcoming 2027 event on Sunday, April 11th is open for the half-marathon and relay race. The race starts and finishes next to the beautiful Platte River Trail and adjacent to the popular Breckenridge Brewery campus. Join us for an epic post-race party at the Brewery with food, vendors, live music, and of course beer!

Whether you’re an experienced runner looking to set a new PR, a newcomer looking to tackle your first half-marathon, or a team of runners wanting to run an exciting relay race, join us for a day of adrenaline-pumping running, scenic views, and all-around fun. What’s more, we donate a portion of the proceeds to Salute Colorado. Thank you for your support, and we can’t wait to see you at the finish line!

Questions? Visit our race website here.

Entry fees are non-refundable and non-transferable. There are no deferrals to future years.

Pick your distance

Running

2027 Half Marathon

Apr 07, 2027 Half-Marathon 7:00 AM
$65.00
Closed

2027 Half Marathon Relay

Apr 07, 2027 Half-Marathon 7:00 AM
$150.00
Closed

2027 5k

Apr 07, 2027 5K 7:15 AM
$35.00
Closed

Typical race-day weather

Based on 9 years of historical conditions on this event's race dates in Littleton.

Temp (°C)
Minimum temperature (race-day average) 8.8° / Maximum temperature (race-day average) 24.8°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 6.2° / Maximum feels like — heat index / wind chill (race-day average) 24.8°
Wind (km/h)
Average wind speed (race-day average)
16.3
Precip (mm)
Average precipitation (race-day average)
1.1mm
Humidity
Average relative humidity (race-day average)
44.3%

About Littleton

Platte River Half-Marathon, Relay & 5k takes place in Littleton, Colorado, United States. The local timezone is America/Denver.

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

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