THRUXTON MASS ATTACK DUATHLON 

Sunday 5th October 2025 | Thruxton Motorcircuit 

Thruxton Mass Attack will again host the 2026 European Duathlon Age Group Sprint Qualifiers. Please do enter early as this event will be a sell out once again!

Thruxton Mass Attack Duathlon is based at the famous Thruxton Race Circuit near Andover, Hampshire making it a perfect venue for the speed hungry athlete! The course comprises a wide, smooth tarmac circuit making the duathlon suitable for beginners and experienced competitors alike. There are two options to choose from:

Standard Distance - 08:30 *Non-drafting event - TT Bikes allowed

Run 1 = 11.4 km (3 laps)

Bike  = 38 km (10 laps)

Run 2 = 3.8 km (1 lap)

Sprint Distance - 12:00 Female Mass Start, 14:00 Open Mass Start *Draft Legal - TT Bikes not allowed

Run 1 = 3.8 km (1 lap)

Bike  = 19 km (5 laps)

Run 2 = 3.8 km (1 lap)

Note: The Sprint distance will be a GB 2026 European English Championships Duathlon qualifer. This race is open to all athletes, however if you wish to qualify for the GB Age group team, please make sure you head to the British Triathlon website to register your intent to qualify. This event is draft legal. Please ensure you fully read and understand the draft legal rules under British Triathlon. You must register to qualify before 5pm on the Friday before the race (03.10.2025).

Electric atmosphere with great music, commentary, live facebook feed, brilliant spectator viewing and a great cafe. 

Epic finishers medal.

"Awesome event! Being a relative newbie to the multi sport world, the support from both the event crew and Marshall’s was amazing. They definitely helped settle my pre race nerves and spurred me on when I was suffering. The venue and course was amazing, I’ve not had that much fun on the bike in a long time. I’ll definitely be back again next year." Racecheck review 2024

Overnight motorhome parking is available - Pre booking only via HERE

MARSHALLING: Sign up HERE to help out

Come and marshal, it's a great day out and you get a credit voucher to use against any of our events!

We encourage all athletes to show respect, support one another, and demonstrate good sportsmanship at all times – please take a moment to read our Code of Conduct before race day.