World-Class Field Takes Shape For Supertri Blenheim Palace As Pros And Amateurs Come Together For UK’s Biggest Triathlon
Supertri Blenheim Palace will see star names competing on the same course as amateurs with home favourites, Olympians and European champions all confirmed to compete in the Supertri Pro Series event.
Supertri Blenheim Palace will see star names competing on the same course as amateurs with home favourites, Olympians and European champions all confirmed to compete in the Supertri Pro Series event.
Supertri Blenheim Palace is one of the only short course events in world triathlon where amateur athletes race on the same course, on the same day, as some of the sport's biggest names.
The professional field heading to the iconic UNESCO World Heritage site for June 6-7 includes three-time Olympians, European champions and the former Supertri E World Triathlon Champion — all competing for qualification spots into the Supertri Pro Series Final and its $800,000 prize pool. And while the battle unfolds, Jonathan Brownlee will be attempting his ambitious Weekend Warrior record.
The women's field is led by home favourite Jessica Fullagar, Belgian star Jolien Vermeylen and Spain's three-time Olympian Miriam Casillas García. Fullagar — a powerful swim-biker born in nearby Ascot — is a British national sprint champion and Senior Super Series winner who anchored Great Britain to WTCS mixed relay silver.
Vermeylen arrives as arguably one of the form athletes from 2025, having swept the European Championship titles at both sprint and Olympic distances and won the Supertri Toronto opener that same year. Casillas García, meanwhile, brings the experience of three Olympic Games — Rio, Tokyo and Paris — and over a decade at the highest level of the sport.
On the men's side, American Chase McQueen and Dutchman Mitch Kolkman represent two of the most exciting forces in short-course triathlon. McQueen is the former Supertri E World Triathlon Champion, a title he claimed in London in 2024, and has since pushed into the top 15 of the World Triathlon Championship Series. Kolkman, just 23, is a Paris 2024 Olympian who followed his Olympic debut by winning the Dutch national sprint championship and the prestigious Triathlon Holten race — becoming the first Dutch winner there in 20 years.
The Supertri Pro Series event also doubles as a stage of British Triathlon’s Super Series. That means aspiring British pros getting the chance to compete and win their way through to the Pro Series Final. The full start lists of 65 women and 65 men, along with more star names, will be announced in race week.
Arguably, the weekend's most extraordinary storyline belongs to Jonathan Brownlee. The triple Olympic medallist will attempt to set a new record for the Supertri Weekend Warrior challenge by completing 10 sprint triathlons across the weekend — roughly 7.5km of swimming, 200km of cycling and 50km of running in 48 hours, a feat no athlete has previously attempted in the challenge's history.
What makes it remarkable is not just the scale of the task, but how Brownlee will do it: lining up wave after wave alongside the thousands of everyday athletes who make Supertri Blenheim Palace what it is. Brownlee has history here — he and his brother Alistair famously crossed the Blenheim finish line in a dead heat in 2012, weeks before their London Olympic glories. He returns with a different mission, but the same spirit.
Supertri Blenheim Palace is the UK's largest triathlon and one of the five biggest in the world by participant numbers. Entry options include the SuperSprint for newcomers, the Sprint distance, relays, and the Weekend Warrior. The Pro Series race takes place on June 7, with the full festival running across both days.
Entries are available now at the Supertri website. Don't miss your chance to race Blenheim.