[3] They fought again in December 2009 where Keo Rumchong had a close decision victory over Vung Noy at Bayon TV arena.

[4] In 2010, the 22 year old pressure fighter beat Lao Sinath, a two division title holder, in the second round at TV3 boxing arena.

On October 24, 2015, Keo Rumchong lost in controversial fashion to Iquezang Kor.Rungthanakeat at THAI FIGHT: 1st Round in Ho Chi Minh City, Vietnam.

Being the shorter fighter by 14 centimeters, Rumchong was overwhelmed by Moisa's heavy hands and was knocked down three times en route to a second-round technical knockout.

[9] On November 24, 2019, Rumchong faced French Kun Khmer fighter Omar Samb, a student of Albert Veera Chey, for the MTGP Super Welterweight -75kg Championship at Muay Thai Grand Prix 31 Bataclan in Paris.