Entrants must be at least 6 years old and no older than 14 years old as of December 31, 2018.

Saturday, August 11, 2018

8 AM | @ One Loudoun

Race Registration Fees 

Early Bird 
Through – July 24:

$40 One Loudoun residents | $45 non One Loudoun Residents

Regular Registration
July 25 – August 9 at 9 AM:

$45 One Loudoun residents | $50 non One Loudoun Residents

Race day registration:

There will be NO race day registration. 


All pre-registered athletes guaranteed to receive a commemorative event
t-shirt, a complimentary 30 minute TFE Ninja Warrior Obstacle Course Voucher, and surprise One Loudoun swag item!

Registration Info

We are Collecting School Supplies!
Participating athletes are asked to bring back to school supplies which can include but not be limited to spiral notebooks, pencils, crayons, back packs, etc. All supplies will be donated to the Loudoun County Back to School Supplies' Drive, which distributes school supplies to kids in need.

Unfortunately we are not able to offer refunds.

If the race or any portion of the race must be cancelled due to weather, unsafe conditions, or any other reason, there will be no refund of registration fees. Race packets and premiums will be distributed at packet pick up.

SERIES is not limited to the above races. SERIES is not limited to Loudoun County events. NO refunds are available for SERIES purchase, SERIES is not responsible for registration fees paid to the races athlete is participating in. Verification of participation in other events is anticipated but not mandatory. 

Loudoun Mini Athletes' Tri SERIES | Cost: $8

Be a part of the Loudoun County Mini Athletes' Tri Series. Sign up and participate in at least two Loudoun County Kids' tri events with the Loudoun Mini Athletes' Tri being one of the two and earn a Mini Athletes' Tri Series participation surprise! Surprise will be mailed to your home, price includes shipping cost. Surprise will be mailed after September 30.

Some Loudoun County Kids’ Tri Events include Loudoun Mini Athlete’s Tri, August 12, Ashburn Village Kids' Tri, August 19, and Claude Moore Park Kids' Tri, September 23. Herndon Kids' Tri September 17.