One day you might dash through the field. The next you return home bloodied and bruised. That's what makes BMX racing so great.
Some will debate whether BMX should be an Olympic sport, but the unpredictability of BMX racing and its wide-ranging popularity is why it's destined to become a staple of the Summer Games.
Intense heat, dislocated shoulders, crazy turns ... it was all part of BMX's first day on the Olympic circuit.