Watch round 2 of the World Triathlon Series from San Diego live today on www.triathlon.org/tv

Gwen Jorgensen ran her way into the history books in San Diego on Friday, becoming the first U.S woman to win a World Triathlon Series race on the back of a scintillating final leg, ahead of Non Stanford and Emma Moffatt.

Alistair Brownlee, Sarah Groff, Matt Chrabot and Felicity Abram address the media at the official press conference in San Diego

They are two of the greatest male triathletes ever and will go head to head once again at the ITU World Triathlon Series San Diego this weekend.

The second round of the ITU World Triathlon Series touches down where it all started in the birthplace of triathlon in San Diego this weekend with some of the top names set to compete.

World champion Jonathan Brownlee will miss the San Diego World Triathlon Series event on April 20 due to an ankle injury.

The first ITU World Triathlon Series races of 2013 showed that Javier Gomez and Anne Haug are the ones to beat this year, but Auckland also threw up more intruiging performances beyond just the podium. We take a look at them here.

The first ITU World Triathlon Series race in 2013 played out exactly how the season finished last year, with Javier Gomez and Anne Haug on top. Here we recap all the social media stories of the race weekend.

The racing continued here in Auckland on Sunday morning as the age group athletes got their chance to compete in either a sprint distance or Olympic distance event as individuals or teams.

Germany's Anne Haug started 2013 where she left off in 2012 in the ITU World Triathlon Series in Auckland, blasting away from the Netherlands Maaike Caelers and Australia's Felicity Abram to record her third consecutive ITU win.