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» Duathlon


Sunday, July 11, 2021


Big Creek State Park Marina – Beach (MAP)
8550 NW 142nd
Polk City, IA 50226

For information on Water Quality Click Here


Packet Pickup:
Sunday, July 11: 6:00 am – 7:30 am – Big Creek State Park Marina (at beach)*

*Race packets will be located in the transition at the participant’s bike spot. No formal check in will take place.

Transition area: Open from 6:00 – 7:30 am on Sunday morning.
Mandatory pre-race meeting: At the swim start area at 7:45 am.
Competition: Begins at 8:00 am



Jason Wulf

Sponsored By

2022 State Games of America
Qualifying Event

2022 State Games of America

All Iowans are eligible to participate!


Athletes will receive a dri-fit shirt with their entry fee. The shirt will be in your race packet.


Competition Format

This is an open course event, meaning that participants must share the road with traffic. For safety, helmets must be worn during the cycling portion of the competition and no headphones/iPods will be allowed on any part of the course. Participants should leave their running shoes in the transition area.

Course will consist of the following:
Run – 5K
Bike – 20K
Run – 5K


Triathlon Federation USA Rules will be followed, with the right to make exceptions. This is not a sanctioned race. Note: Helmets must be worn during the cycling portion of the competition. For safety reasons, no headphones/iPods etc. will be allowed on any part of the course.

Age Determining Date

December 31, 2021

Medals sponsored by Grinnell Mutual

Gold, silver and bronze medals awarded in each age division. Medals will not be given out until everyone has finished and results are compiled.

Chip Timing

True Time Racing Service will chip time the event.  Disposable chips will be distributed with packets.

The race will be timed live through True Time Racing. Please follow the link below to follow the race and to see post-race results. Please send any questions about your times to

Volunteers Needed!

This event would not be possible without volunteers. If you would like to be part of the action, numerous volunteers are needed for this event.

For more information on volunteering, click “Volunteer Opportunities” in the drop down menu. Please contact Dan Beitelspacher,, to learn more about volunteering or if you have questions.

Team | Female, Male & Coed


Individual | Female & Male

15 & Under
16 – 19
20 – 24
25 – 29
30 – 34
35 – 39
40 – 44
45 – 49
50 – 54
55 – 59
60 – 64
65 – 69
70 – 74
75 – 79
80 – 84
85 & Over
Clydesdale – Men at least 220 pounds
Athena – Women at least 165 pounds

The Iowa Games Duathlon would not be possible without our volunteers.  To volunteer, click HERE. Volunteer Registration opens March 1. 

Location information can be found on the General Information tab. Parking is free.

All volunteers will receive a Summer Iowa Games Volunteer shirt.

Volunteers will check-in at the packet pick-up shelter where you’ll receive your shirt and further instructions.

If you have questions about volunteering, contact Dan Beitelspacher at or call 888-777-8881 ext 707.

Sunday, July 11 (all at Big Creek)

Check-in / Information / Refreshments | 5:45 – 11:00 am

Job duties: Hand t-shirts to participants as they come to redeem their tickets, help set up refreshments and monitor refreshment area.

Body Marking / Swim Exit Counter | 6:00 – 10:00 am

Job duties: Mark athletes with a Sharpie and count swimmers as they exit the water to make sure all are accounted for.

Course Support | 7:00 – 11:00 am

Job duties: help direct participants and assist with other needs along the course.


Registration Deadlines

Individual Fees*:
$62 if registered by May 10
$72 if registered between May 11 – June 14
$82 if registered between June 15 – July 8 (noon)

Team Fees*:
$130/team if registered by May 10
$140/team if registered between May 11 – June 14
$155/team if registered between June 15 – July 8 (noon)

On-site registrations will be accepted but are limited so pre-registration is highly encouraged. 
On-site registration fees:
$85 for Individual
$160 for team


Gold Sponsors