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.

Pukekohe co-trainer Dean Wiles always hoped Mai Guru would turn out to be a shrewd $60,000 buy for his Singapore owners at the last NZ Bloodstock Ready to Run Sale but the chance to recoup almost 10 times that investment in a little over two months has exceeded even Wiles' ambitious expectations.

The 4kg claiming apprentice W L (Willy) Tan will be legged up onto Mr Big in the feature sprint today at Kranji and will be on a very firm favourite.