Eh Phouthong was known for his powerful right kick which shattered many arms, he is considered a legend in Kun Khmer[5] He is the most famous kickboxer from Cambodia.

[2] Growing up he did not have access to education because he was either working jobs to support his family or training in his passion of Khmer kickboxing.

He has starred in two Khmer-language action films and was the co-host of CTN's highly rated reality show, Kun Khmer Champion.

"[11] In 2003, Eh Phouthong won a kickboxing championship by defeating Sudanese fighter, Faisal Zakaria.

[12] He reached the semifinal in the first S1 championship in Thailand defeating X Rafi from Spain and losing in the 2nd round up to the eventual tournament champion Suriya Ploenchit.

[4] In 2008, Eh Phouthong said he considered retiring after losing to Australian Adam Shahir Kayoom in the 85 kg weight division.

Eh Phouthong's coach, Chhit Sarim, said he trained regularly but didn't rest enough afterward and was out with his friends too much.

He won a bronze medal in western boxing at the 2009 Southeast Asian Games at Laos in the 81 kg weight division.

In their rematch at TV3, Cambodian kickboxing sensation Eh Phouthong knocked out Spanish veteran Pitu Sans in the first round with a barrage of kicks.

Eh Phouthong severely injured the seasoned Spanish fighter with just five kicks, causing damage to an arm and bruising his left shin.

Referee Troeung Sossay intervened to deliver the standing eight count after Sans turned away in agony after receiving a series of four right roundhouse kicks in the first round.

His coach, Chhit Sarim, felt great satisfaction that his student Eh Phouthong was able to open a kickboxing club.

[15] In 2023, Eh Phouthong won the "Best Coach Award" from the Khmer Boxing World Championship Techo Santepheap.

[17] On July 7, 2023, the Galaxy Navatra Eh Phouthong Khmer martial arts club was inaugurated.