With F1 enjoying its summer break, Button along with other members of the motorsport world, took part in the energy-sapping event to raise money for charity.
Despite suffering from tonsillitis in the run-up to the event, Button produced an incredible performance to finish fourth of 570 competitors in his group, albeit seven minutes slower than his time last year in the younger group.
Ã¢â‚¬Å“I wasnÃ¢â‚¬â„¢t feeling very well at the start of the week, which is why I have come in a bit slower than last time round,Ã¢â‚¬Â said Button. Ã¢â‚¬Å“I really didnÃ¢â‚¬â„¢t want to miss out on the weekend, though, as I had such a fantastic time here last year, so I just decided to battle through it.Ã¢â‚¬Â
The annual event, which is the largest triathlon in the world, regularly attracts over 11,000 entrants who compete around LondonÃ¢â‚¬â„¢s famous landmarks including the Palace of Westminster, Tower Bridge, and the London Eye with a 1500-metre swim, 40-kilometre bike ride, and a 10-kilometre run.
Button competed to raise money for the Make-A-Wish FoundationÃ¢â‚¬â€a charity which makes dreams a reality for young people fighting life-threatening illnesses.
At the time of writing, the 30-year-old McLaren driver has raised almost Ã‚Â£18,000, with organisers reporting that over Ã‚Â£2m had been raised this year for various charities.
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BIOGRAPHY: Anthony Martial