The average cycling road race for disabled athletes is a one-day event stretching 50 miles, while able-bodied races can last five days or more, he said.

WSJ: Blade Runner Is on a Well-Trodden Path

Riding for Team Specialized-Lululemon, she's won stage races in New Zealand, Poland and Idaho, and a thrilling one-day classic in Belgium over Dutch superstar Marianne Vos.

WSJ: Evelyn Stevens Gets an Assist From Connie Carpenter: Cycling's Luke Finds Her Obi-Wan -- London 2012

Triathlon is an unpredictable sport - any one of 20 athletes could reasonably win one of the world's top races on a given day.

BBC: Sport - Alistair Brownlee ready for crucial Olympic qualifying year