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» Duathlon


Sunday, July 12, 2020


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

For information on Water Quality Click Here


Packet Pickup:
Saturday, July 11: 2:00 pm – 5:00 pm – Exile Brewing Company | 1514 Walnut St., Des Moines, IA 50309
Sunday, July 12: 6:00 am – 7:00 am – Big Creek State Park (at beach)

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

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Athletes will receive a dri-fit shirt.

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, 2020

Medals sponsored by Grinnell Mutual

Gold, silver and bronze medals awarded in each age division.

Chip Timing

True Time Racing Service will chip time the event.  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 or click the button in the top right corner of the page. 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.

Saturday, July 11

Packet Pick Up – 1:30 – 5:00 PM

Job duties – handout race packets & t-shirts to participants, stuffing race packets with materials, etc. This packet pick-up will be held at Exile Brewery. Please see the events page for address.

Sunday, July 12 (all at Big Creek)

Packet Pick Up & Refreshments – 5:45 – 10:30 am

Job duties: handout race packets & t-shirts to participants, help set up refreshments and monitor refreshment area

Swim Exit Counter – 7:45 – 9:00 am

Job duties: 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.

Water Station (run course) – 7:00 – 11:00 am

Job duties: help athletes get water, may need to direct athletes as they approach if there are multiple.

Registration Deadlines

Individual Fees*:
$60 if registered by May 4
$70 if registered between May 5 – June 8
$80 if registered between June 9 – July 9 (noon)

Team Fees*:
$130/team if registered by May 4
$140/team if registered between May 5 – June 8
$155/team if registered between June 9 – July 9 (noon)

*Entry fee includes Dri-Fit Shirt

On-Site Registration

$85 for individuals
$160 for teams
Onsite entries NOT guaranteed Dri-Fit Shirt.


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