Los Dos Indoor Duathalon

Saturday, May 2 + Sunday, May 3

Inwood Athletic Club

$32 pre-reg thru March 31 | $37 April 1-30

Inwood Run Club rates available.

For online registration, pre-reg or IRC discounts will be reflected at checkout.

Packet Pickup

Friday, May 1 | 6a-7p | Inwood Athletic Club

A bike will be available at packet pickup for athletes who wish to obtain their settings (seat + handle bar height / aft) prior to race day.

For all race questions, contact Denise Ryan at dryan@jolietpark.org.

About the Race

 Let's DU it!

We're putting a new "spin" on the run3 series with the Los Dos Indoor Duathalon! Join us for a time-based challenge on the indoor cycles and treadmills. How far can you pedal in 20 minutes and then run in 30 minutes?

Los Dos will take place across 2 days with 12 waves starting at 6:30 am each day. Registered athletes can choose their wave starting March 1 via the link provided on their registration receipt. A full wave timeline is available here. 

Registered athletes will receive a custom unisex short-sleeve t-shirt and finisher's medal. First, second and third place awards will be given to the overall male / female winners (combined cycle/run), cycling male / female winners and running male / female winners. (Winners will be determined based on distance achieved for their respective events.)

$32 thru March 31 | $37 April 1-30

Los Dos is the first race in the 2026 run3 series.  Register for all three Joliet Park District races to receive free custom run3 swag. Click here to register for the run3 bundle (available Feb 1 - Mar 31). 

 REGISTRATION

How can I register for the Los Dos Indoor Duathalon?

You also can register online, in-person at the Joliet Park District, 3000 W Jefferson St in Joliet or call 815-741-7275 x100. 

Can I participate in Los Dos virtually?

There will not be a separate virtual registration for Los Dos. Virtual athletes must pick up their packets in person. Virtural athletes are not eligible for Los Dos awards, but they are eligible for run3 swag.

Will race day registration be available?

Race day registration for Los Dos will not be available.

Is there a group registration rate?

There will not be a group registration option for Los Dos.

PACKET PICKUP

When and where is packet pickup?

Race packet pickup for pre-registered runners will be Friday, May 1 from 6a-7p in the Community Room at Inwood Athletic Club (3000 W. Jefferson in Joliet).  Packet pickup also will be available on race day. 

A bike will be available at packet pickup for athletes who wish to obtain their settings (seat + handle bar height / aft) prior to race day.

RACE DETAILS

What is a duathalon? How does this race work?

Simply put, a duathalon consists of two events: cycling and running. The Los Dos Indoor Duathalon will utilize treadmills and indoor cycling bikes, with athletes challenged to complete as much distance as possible in the time allotted. Los Dos athletes will first cycle for 20 minutes and then run/walk for 30 minutes. (A 10 minute transition is scheduled between the cycling and running events.) The distance achieved for both events will be recorded.

Can I participate in only one event of the duathalon?

Ahtletes may choose to forfeit their participation in an event, but there will not be a discounted registration for single events.

What is the wave timeline for Los Dos?

There will be a total of 24 waves available for athletes (12 on Sat, May 2 and 12 on Sun, May 3) with 12 athletes per wave.

How do I sign up for my wave?

Registered athletes will be provided with a link on their registration receipt to sign up for their choice of wave time. Wave time registration will open on March 1 at 8:00am. 

RACE DAY INFO

Where should I park on race day?

There is ample parking at Inwood Athletic Club (3000 W. Jefferson St, Joliet). Runners should enter the building under the "wave" awning and check in on the 2nd floor (fitness floor).

When should I arrive for my wave start time?

We recommend that athletes arrive no less than 30 minutes before their wave start time. Athletes *must* check in to the cycle studio 5 minutes before their scheduled wave start. Athletes who miss their wave start will not be permitted to start late and may only be assigned to a new wave if space is available.

Will there be a gear check area?

While there will not be a gear check available, athletes will have access to a staffed studio for warm up / stretching. Gear may be left in the studio during the athlete's wave time.

RESULTS / AWARDS

When and how will the results be posted?

Results will be tabulated upon completion of the final wave on Sunday, May 3. Results will be posted on the run3 website that evening. Runners will be emailed with a link to the results, and the link also will be published on social media accounts (run3 and Inwood Athletic Club on Facebook and Inwood Athletic Club on Instagram).

Will there be awards?

Yes! Prizes will be awarded to the first, second and third place finishers with the best distance in the following categories: overall (combined run + cycle) male and female, running male and female, and cycling male and female.

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How does my company become a Los Dos Indoor Duathalon sponsor?

Contact Beth Ley, Corporate Relations Supervisor, for more information on sponsorship or participation in any of the Joliet Park District run3 race events: 815-741-7274 x 319 –OR– bley@jolietpark.org

Still have questions? Need more information?

Contact Denise at dryan@jolietpark.org

No refunds due to inclement weather and/or race cancellation.

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