Endure Ultra Triathlon - Big Creek State Park
Endure Ultra Triathlon - Big Creek State Park is a triathlon, aquabike, and duathlon race on June 7–11, 2027 in Polk City, IA, with entry fees from $395 to $1980.
- Date
- June 7–11, 2027 (234 days to go)
- Location
- 8794 NW 125th Ave, Polk City, IA
- Price
- $395–$1980
- Sports
- TriathlonAquabikeDuathlon
From the Organizer
Endure Ultra Triathlon will be racing at Big Creek State Park, Iowa!! Athletes come experience the fast flat course of beautiful Big Creek State Park just outside of the state capitol Des Moines in Polk City. Join us for an fast race through Big Creek State Park, where every step brings you closer to discovering what you can ENDURE. Join us for a chance to test your limits and immerse yourself in the ultra-triathlon community. Your limits will be tested, both physically and mentally, but the person you discover along the way is what allows you to endure even the unthinkable. Don’t let doubt keep you from achieving what you were set out to endure in life.
Race Weekend: June 6 to 13, 2027
Location: Big Creek State Park, Pol City, Iowa
Transition Area: The transition area is filled with the true meaning of the ultra triathlon community. Every athlete will have an area that they can set up as they wish. An athlete can bring or rent a tent for the transition area. If a tent is rented the athlete will also be provided with two chairs and a table. Transition will also include the timing mat, a charging station, bike mechanic area and the finish line!
Athlete Briefing & Pre Race Dinner: Race weekend kick off with athlete briefing and pre-race dinner. Come meet the athletes, crew members, volunteers, staff and sponsors before the weekend kicks off.
Awards Banquet: Join us for a celebration of the weekend.
Sanctioning: Our races are proudly sanctioned by USA Triathlon.
Events
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
79°
Typical Low
60°
Chance of Rain
41%
Based on US Climate Normals data from Des Moines Wsfo-Johnston, 4 mi from the venue.
About Polk City, IA
Population
5,833
as of 2023
City Elevation
894 ft
Nearest Airport
DSM
Des Moines International Airport · 15 mi
Time Zone
Central Time
From Endurance Grid
A small town race. Lodging near the start could be limited, so book early.
Race Location
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Endure Ultra Triathlon - Big Creek State Park, put it on the calendar, and turn “someday” into a start date.
234
Days to train
- Race
- Endure Ultra Triathlon - Big Creek State Park
- Date
- June 7–11, 2027
- Location
- 8794 NW 125th Ave, Polk City, IA
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About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Triathlon
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.
Aquabike
A swim followed by a bike — a triathlon without the run. Sprint and Olympic distances, often alongside a tri at the same venue.
Duathlon
Run, bike, run. The multi-sport format without the swim. Two disciplines, one race — a great bridge between running and triathlon.
More Triathlon races near Polk City, IA
Frequently Asked Questions
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Endure Ultra Triathlon - Big Creek State Park
Jun 7, 2027