PANAJI: St Rita High School, Maina-Curtorim defeated New Educational Institute, Curchorem 20-25, 25-8, 25-22 to emerge winners at the South Goa inter-school boys volleyball tournament, organised by Nehru Yuva Kendra under Panchayati Yuva Krida Khel Abhiyan (PYKKA) of Sports Authority of Goa and played at Holy Spirit Church grounds, Margao.