Mighty Du Mother’s Day Duathlon
formerly Carl Hart Duathlon

Mark Your Calendar!
Sunday May 10, 2020
Heckscher State Park, Islip NY

Start Time: 8:00am


Course Description And Maps

  • New Bike Course: The bike course will now be 3 loops of the inside loop at Heckscher State Park…that means no U-Turns! The loop is 3.5 miles and participants will still be riding 10.5 miles.

    The Mighty Mother’s Day Du, formerly the Carl Hart Duathlon is a great way to start your season! This event has been a mainstay on the multi-sport scene for over 20 years with a very flat 3 lap bike course and some grass and dirt on the run.

    Bikes allowed: road bike, time trial, mountain bike or hybrid. (Sorry, no tandem or recumbent bikes!)

    First run: 1.8 miles, Bike: 10.5 miles, Second run: 1.8 miles

    Adult Start Time: 8:00am

  • RUN 1.8 Miles Road and trail run in the park
    BIKE 10.5 Miles Three lap ride on park road that will be closed to vehicle traffic for the duration of the event.
    RUN 1.8 Miles Road and trail run in the park (same as the first run). There will be a water stop at the beginning of this loop.

    View Race Maps


Until 12/31 1/1 – 2/28 3/1 – 4/1 4/2 – Full
$60 $70 $80 $90

Online registration closes Friday, May 8th at noon.

If registration is available at packet pick-up a $10 surcharge will be added to any registration fees. CASH ONLY! You are not guaranteed a t-shirt.

*Prices above reflect cost for USAT Members. 1-day license fee applies for non-USAT Members. Each participant MUST have a valid USAT license. Visit the USAT tab below for details.