I used to work at a running store, peddling shoes, spandex and those fanny packs with water bottles in them to motivated joggers and marathon masters.

Occasionally, you would run into one of the hardcore, holier-than-thou triathlon competitors – you know the swim-bike-run sport that no person in their right mind would voluntarily do.

These triathletes were usually tanned, wiry-framed individuals that somehow reminded me of those shriveled up sponge figures that would burst into form with just a glass of water. There is such a thing as "too fit". And it’s gross.

If triathlons are your thing, don’t poke fun at us as we gasp for breath after taking the stairs… and enjoy wagering on the odds for the men’s triathlon at the Olympic games in London.

British brothers Alistair and Jonathan Brownlee are the betting favorites heading into the games, priced at -167 and +200 respectively at bet365.com.

Alistair, who suffered an Achilles tear in February and missed the first three races of the season, topped his brother by 50 seconds at the World Series race in Kitzbuehel, Austria in June and crossed the line over a minute ahead of Javier Gomez, who is the third-overall favorite at +600.

Here’s a look at the full Olympic men’s triathlon odds:

Alistair Brownlee, UK -167
Jonathan Brownlee, UK +200
Javier Gomez, Spain +600
Richard Murray, South Africa +1,400
Alexander Brukhankov, Russia +2,000
Sven Riederer, Switzerland +4,000
William Clarke, UK +4,000
Jarrod Shoemaker, USA +5,000
Steffen Justus, Germany +5,000
Jan Frodeno, Germany +5,000
Dmitry Polyansky, Russia +6,600
Laurent Vidal, France +6,600
David Hauss, France +6,600
Brad Kahlefeldt, Australia +8,000