THRUXTON MASS ATTACK DUATHLON 

Sunday 4th October 2026 | Thruxton Motorcircuit | 2025 Event Pack (for info only)

Thruxton Mass Attack will be hosting the GB 2027 World Duathlon Age Group Sprint and Standard 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. Electric atmosphere with great music, commentary, live facebook feed, brilliant spectator viewing and a great cafe. There are two options to choose from:

Standard Distance - 08:00 *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)

11:30 Prize Giving

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)

16:00 Prize Giving

Note: Both sprint and standard distances will be a GB 2027 World 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. You must register to qualify before 5pm on the Friday before the race (02.10.2026). The sprint event is draft legal. Please ensure you fully read and understand the draft legal rules under British Triathlon. 

"Overall, a very good event. From start to finish the staff were very welcoming and engaging, a very good location to race. Clear set up/ course and transition. Staff were very encouraging throughout the participation. Overall I can’t think of any improvements to make - the staff in particular made a real difference on the day and stood out as a really positive contributor to an excellent day overall" Racecheck Review 2025 

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.