BEIJING (AP) -Britain's Chris Hoy has won the men's keirin gold medal, adding to his country's staggering cycling medal haul at the Beijing Olympics.

With Hoy winning and countryman Ross Edgar taking silver on Saturday, the British already have eight cycling medals in Beijing, four of them gold.

Kiyofumi Nagai of Japan won the bronze.

The keirin is an eight-lap race in which riders spend 5 1/2 laps jockeying for position behind a pacesetting motorcycle that accelerates steadily before leaving the track and leaving the competitors alone on the track for the final 625 meters.