BMX action at the Olympics

Tory Nyhaug (R) of Canada leads the field during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

Aug 9, 2012; London, United Kingdom; Tory Nyhaug (49) during the men's BMX quarterfinal run in the London 2012 Olympic Games at BMX Track. Mandatory Credit: Andrew Weber-USA TODAY Sports

Aug 9, 2012; London, United Kingdom; Khalen Young (AUS), #97 falls off his bike as he attempts to avoid a collision with Ea Buchely Falla (ECU), #50, and Quentin Caleyron (FRA), #14, during the men's BMX quarterfinal run in the London 2012 Olympic Games at BMX Track. Mandatory Credit: James lang-USA TODAY Sports

LONDON, ENGLAND - AUGUST 09: Quentin Caleyron of France falls at the lip of a jump during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 09: (L-R) Jelle Van Gorkom of Netherlands, Maik Baier of Germany, and Tory Nyhaug of Canada crash during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Action as the field make their way across a jump in the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 08: An exhibition rider jumps over a stick on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 08: An exhibition rider jumps over a stick on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 08: Luis Brethauer of Germany competes during the Men's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

A freestyler entertains the crowd between races during the BMX seeding run at the London 2012 Olympic Games at the BMX Track in the Olympic Park August 8, 2012. REUTERS/Cathal McNaughton (BRITAIN - Tags: SPORT CYCLING OLYMPICS)

LONDON, ENGLAND - AUGUST 09: Khalen Young of Australia lies on the ground after crashing during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Riders start the race down the ramp during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Nicholas Long (R) of the United States leads the field down a jump during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Brian Kirkham (C) of Australia races during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Emilio Andres Falla Buchely (L) of Ecuador clears a jump with the field during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: The field clear a jump during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Raymon van der Biezen of the Netherlands in action during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 09: Maik Baier of Germany crashes into Tory Nyhaug of Canada during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Maik Baier of Germany crashes into Tory Nyhaug of Canada during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Riders exit the start gate and head down the starting ramp during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 09: Liam Phillips (L) of Great Britain and Connor Fields of the United States race through the course during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 09: Khalen Young (2L) of Australia leads the pack during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 09: Khalen Young of Australia holds his head after crashing during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Arnaud Dubois of Belgium (R) pumps through a section during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Action as the field make their way across a jump in the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: (L-R) Brian Kirkham of Australia, Carlos Mario Oquendo Zabala of Colombia, Maris Strombergs of Latvia, Sam Willoughby of Australia and Twan van Gendt of the Netherlands clear a jump during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 09: (EDITORS NOTE. Image is a retransmission with an alternative crop) Joris Daudet (L) of France goes to ground as the pack crash during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 09: Connor Fields of the United States (2L) leads the field out of the berm during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 08: Sam Willoughby of Australia competes during the Women's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Harry How/Getty Images)

LONDON, ENGLAND - AUGUST 08: Brooke Crain of the United States competes during the Women's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 08: Brooke Crain of the United States is helped up after falling during the Women's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Phil Walter/Getty Images)

LONDON, ENGLAND - AUGUST 08: Alise Post of the United States during the Women's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 08: Brooke Crain of the United States competes during the Women's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - AUGUST 07: Squel Stein of Brazil (L) and Brooke Crain of the United States train on the BMX track in Olympic Park on Day 11 of the London 2012 Olympic Games on August 7, 2012 in London, England. (Photo by Phil Walter/Getty Images)

Vilma Rimsaite of Lithuania trains on the BMX track in Olympic Park on Day 11 of the London 2012 Olympic Games on August 7, 2012 in London, England. (Getty Images)

A rider from Poland is seen in action during a Mountain Bike training session on Day 12 of the London 2012 Olympic Games at Hadleigh Farm on August 8, 2012 in Hadleigh, England. (Getty Images)

An exhibition rider jumps over a stick on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Getty Images)

Manuel de Vecchi (L) of Italy goes to ground as the pack crash on the berm during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Riders exit the start gate and head down the starting ramp during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Joris Daudet (L) of France goes to ground as the pack crash during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Action as the field make their way across a jump in the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Khalen Young of Australia holds his head after crashing during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Luis Brethauer of Germany competes during the Men's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Getty Images)

A rider from Germany is seen in action during a Mountain Bike training session on Day12 of the London 2012 Olympic Games at Hadleigh Farm on August 8, 2012 in Hadleigh, England. (Getty Images)

An exhibition rider jumps over a stick on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Getty Images)

Khalen Young (AUS), #97 falls off his bike as he attempts to avoid a collision with Ea Buchely Falla (ECU), #50, and Quentin Caleyron (FRA), #14, during the men's BMX quarterfinal run in the London 2012 Olympic Games at BMX Track. (US Presswire)

Aneta Hladikova of Czech Republic competes during the Women's BMX Cycling on Day 12 of the London 2012 Olympic Games at BMX Track on August 8, 2012 in London, England. (Getty Images)

Tory Nyhaug (49) during the men's BMX quarterfinal run in the London 2012 Olympic Games at BMX Track. (US Presswire)

Maik Baier of Germany crashes into Tory Nyhaug of Canada during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Jelle Van Gorkom of Netherlands crashes during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

(L-R) Jelle Van Gorkom of Netherlands, Maik Baier of Germany, and Tory Nyhaug of Canada crash during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Raymon van der Biezen of the Netherlands in action during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

Quentin Caleyron of France falls at the lip of a jump during the Men's BMX Cycling Quarter Finals on Day 13 of the London 2012 Olympic Games at BMX Track on August 9, 2012 in London, England. (Getty Images)

A BMX stunt performer during qualifying for men's BMX in the London 2012 Olympic Games BMX Track. (US Presswire)