Rocket Man has won his 4th Lion City Cup at Kranji Sunday without too much trouble at all.

Argentinian-bred Martincho Cat bounced back from his unlucky last-start run to score a gutsy win in the $75,000 Open Benchmark 74 race over 1600m on Polytrack on Sunday.

Leading jockey Joao Moreira added another four-timer to his unstoppable winning streak after he rode Special Encore, Masthead, Freezemaster and Michael to victory in quick succession on Sunday.