Donnelly lost in a quarter-final play-off 8-2, 8-7 to Tony Wood of Australia. Wood had also beaten the South African Proteas player in an early qualification round.
Shannon McIlroy of New Zealand beat Scotland’s Stewart Anderson 8-7, 2-11, 2-1, in another quarter-final.
The world’s top 24 men and women are competing in the championship, in two sections of 12.
– Sapa
Download our app and read this and other great stories on the move. Available for Android and iOS.