Richmond Park will be closed to motor vehicles on Sunday for the London Duathlon.

The event is billed as the world's largest run-cycle-run event of its kind.

The duathlon offers a range of distances and relay options and competitors include a range of both beginners and seasoned multisport athletes.

The event, which is run by the Limelight Sports Club, will attract hundreds of competitors and spectators.

There is a half duathlon of two 5k runs separated by a 22k cycle; a full duathlon with a 10k run, 44k cycle and 5k run; and an ultra duathlon of 20k run, 77k bike ride and 10k run.

Teams will be taking part in a relay.