Triathlon Grand Finals - in pictures

Anne Haug of Germany starts the swim leg during the women's elite race
Photograph: Tom Jenkins for The Guardian

During the swim leg the athletes did a circuit within The Serpentine
Photograph: Tom Jenkins for The Guardian

Non Stanford of Great Britain, the 2012 under-23 women's World Champion, gasps for breath
Photograph: Tom Jenkins for The Guardian

After completing the swim and the bike ride, Non Stanford sets off onto the run
Photograph: Tom Jenkins for The Guardian

She crosses the finishing line to win the women's elite race and the World Championship
Photograph: Tom Jenkins for The Guardian

Stanford is doused in champagne by her compatriot Jodie Stimpson
Photograph: Tom Jenkins for The Guardian

On Sunday morning triathletes limber up
Photograph: Tom Jenkins for The Guardian

Parliament can be seen in the background as the athletes approach the start platform
Photograph: Tom Jenkins for The Guardian

Shirin Gerami of Iran is covered up in a shawl as she enters the Serpentine for the swim leg of her age group race
Photograph: Tom Jenkins for The Guardian

Geese fly away from the Serpentine as triathletes compete behind them
Photograph: Tom Jenkins for The Guardian

It's no wonder when you see the splash they are making
Photograph: Tom Jenkins for The Guardian

Triathletes exit the water amid low morning sunlight
Photograph: Tom Jenkins for The Guardian

Shirin Gerami receives her shawl as she emerges from the water
Photograph: Tom Jenkins for The Guardian

Next up, the grueling bike leg
Photograph: Tom Jenkins for The Guardian

Gerami holds up an iranian flag as she finishes her race
Photograph: Tom Jenkins for The Guardian

Ahead of the elite men's race, Jonny Brownlee of Great Britain blows on his hands to keep warm, while his brother Alistair (right), the reigning Olympic champion, prepares for the start of the race
Photograph: Tom Jenkins for The Guardian

They've got plenty of spare bike wheels in case of a problem during the cycling leg of the race
Photograph: Tom Jenkins for The Guardian

Jason Wilson from Barbados dives into the Serpentine in the men's elite race
Photograph: Tom Jenkins for The Guardian

Spectators observe from the sidelines
Photograph: Tom Jenkins for The Guardian

Javier Gómez of Spain, one of the favourites alongside the Brownlee brothers, emerges from The Serpentine
Photograph: Tom Jenkins for The Guardian

Alistair Brownlee tries to escape the pack on the bike leg
Photograph: Tom Jenkins for The Guardian

But as the men come into transition between bike and run, Alistair Brownlee is clearly in agony with an injury
Photograph: Tom Jenkins for The Guardian

He soldiers on
Photograph: Tom Jenkins for The Guardian

But the race is now between Jonny Brownlee and Javier Gómez of Spain
Photograph: Tom Jenkins for The Guardian

Gómez pips Brownlee to the line in a sprint finish
Photograph: Tom Jenkins for The Guardian

Despair for the 2012 men's World Champion after such a narrow defeat
Photograph: Tom Jenkins for The Guardian