We’re Back for 2025 – The Harcourts Marlborough Kids Duathlon!
Get ready Marlborough! The Harcourts Marlborough Kids Duathlon returns on Sunday 12th October 2025 - and it’s all about having fun, getting active with your mates, and giving it a go.
With loads of spot prizes up for grabs on the day, the big one to aim for is a brand-new bike and helmet, generously sponsored by the legends at Bikefit Marlborough.
TWO race options + ONE fun run (Ages 4–18):
Pick the course that suits your age and fitness level.
Race 1:
Run 1km | Bike 3km | Run 1km
Race 2:
Run 2km | Bike 5.5km | Run 1km
Beat the Bear – 500m Dash (Ages 4–7)
Back by popular demand! A fun 500m run or walk for our youngest participants. Parents are welcome to join in and support their little racers. And yes… the bear is back!
Limited Edition Event T-Shirts
Enter by 25th September to pre-order this year’s collector tee - don’t miss out!
School Challenge - Double Points Alert!
There’s a prize for the school with the highest percentage of entries. Enter before the end of September and your entry counts for double!
+ an AMAZING cake stall!
Key Dates:

Event Date: Sunday 12th October 2025
T-Shirt Deadline: Thursday 25th September 2025
Online Entry Closes: Monday 7th October 2025
Limited registrations on the day.
Ticket price starting from $10

Space is limited to 500 participants – enter now!
Register online at www.kidsdu.co.nz
Follow updates at facebook.com/MarlboroughKidsDuathlon