Wanheng Menayothin has three losses against two opponents on his boxing record. For a list of Menayothin's best fights, refer to "Best fights of Wanheng Menayothin".
On July 20, 2022 Wanheng Menayothin fought Knockout CP Freshmart in a strawweight world-title fight for Freshmart's WBA (Super) title. Menayothin was 36 years old and with a record of 55-3 (19), and Freshmart was 31 years old and with a record of 23-0 (9). Menayothin lost the fight via 12-round unanimous decision.
On March 29, 2022 Wanheng Menayothin fought Panya Pradabsri in a strawweight world-title fight for Pradabsri's WBC title. Menayothin was 36 years old and with a record of 55-2 (19), and Pradabsri was 31 years old and with a record of 37-1 (23). Menayothin lost the fight via 12-round unanimous decision.
On November 27, 2020 Wanheng Menayothin met Panya Pradabsri in a strawweight (WBC) world-title defense fight. Menayothin was 35 years old and with a record of 54-1 (18), and Pradabsri was 29 years old and with a record of 34-1 (22). Menayothin lost the fight via 12-round unanimous decision and lost the title.
