Kwok graduated from St. Francis Xavier's College, Tai Kok Tsui where he played in the school basketball and table tennis team.

Although the two teams drew 0–0 in their first match in Hong Kong, China PR was considered to be stronger and was favoured to win the group.

After the game, Chinese fans rioted outside the stadium, while the Hong Kong team received a heroic welcome at the Kai Tak Airport.

The return leg at the Hong Kong Stadium was a complete sell-out but the home side lost 2–1 after missing a penalty [3] and several other chances.

Kwok was appointed Member of the Order of the British Empire (MBE) in the 1978 Birthday Honours "for services to Sport in Hong Kong.