Following are the quarter-final results of men's BMX cycling preliminary round at the Beijing Olympic Games on Wednesday:

Heat 1:

1. Mike Day, United States

2. Marc Willers, New Zealand

3. Donny Robinson, United States

4. Andres Jimenez, Colombia

Heat 2:

1. Sifiso Nhlapo, South Africa

2. Arturs Matisons, Latvia

3. Raymon Van De Biezen, Netherlands

4. Kyle Bennett, United States

Heat 3:

1. Maris Strombergs, Latvia

2. Rob Va Den Wildenberg, Netherlands

3. Manuel De Vecchi, Italy

4. Kamakazi, Australia

Heat 4:

1. Jared Graves, Australia

2. Cristian Daniel Becerine, Argentina

3. Roger Rinderknecht, Switzerland

4. Damien Godet, France

Qualification Rule: 1-4 from each heat after 3 runs qualify for the semi-finals.