On August 25, 2015, she challenged Ashley Nichols for the W.P.M.F Interim World Featherweight title and lost by decision.

In 2016, Wihantamma won a bronze medal at the IFMA World Muay Thai Championships in Jönköping.

In the same year, she also won a gold medal at the World Combat Games in Saint Petersburg.

In 2013 and 2017, Wihantamma won two gold medals at the Asian Indoor and Martial Games in Bangkok and Ashgabat.

[5][6] In January 2017, she challenged Candice Mitchell and won the WMC World Featherweight title by decision.