Megasthenes ridden by P Ajeeth K won the Defence Services Staff College Trophy, the chief event of the races here today.
The winner, trained by R Karthik, is owned by M A M R Muthiah.
Trainers Saddam Iqbal and Karthik saddled two winners each while jockey C Umesh rode three winners.
Only one favourite obliged the punters in a card of seven events.
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