Singapore professional boxers Muhamad Ridhwan ( in red gloves) and Hamzah Farouk were victorious in their respective bouts at The Ring Fighting Championship IV at The Ring Boxing Community at Kim Yam Road on Friday night. Ridhwan, the International Boxing Organisation intercontinental featherweight champion, kept his professional record perfect after a second-round technical knockout of Indonesian Rivo Rengkung. This was the 30-year-old's 11th win of his career. Hamzah, 29, extended his professional record to six wins in six bouts after knocking out Indonesian Ramly Pasaribu in the second round.