[1] He quickly gained recognition and began fighting in the Bangkok stadiums at age 12.
In 2018, Rungkit had a high number of victories at Rajadamnern Stadium and was granted a title shot for the vacant 130 lbs belt, in which he won against Rodtang Jitmuangnon at only 16 years old.
[2] In 2019, he took part in the Rise World Series kickboxing tournament.
[3] On March 10, 2019, he defeated Fred Cordeiro by unanimous decision in the First Round of the Rise World Series.
[4] Rungkit vacated his 130lbs Rajadamnern title shortly before his Rise World series semi final stating that he wouldn't be able to make that weight in a near future.