Who has won titles in boxing and kickboxing?

[chinarich]

I think Carl Thompson was a Muay Thai world champion before boxing, then of course he held the WBO and IBO Cruiserweight titles.

His wiki says he had two fights for MT world titles but lost both.

I did see an interview with him where he said he won a world title but there isn't much recognition compared to boxing because there are so many different organisations. Maybe he did, maybe he didn't.

[HomicideHenry]

Klit got knocked cold by Pele Reid

What nobody ever says though is that it was a no contact tournament. So when he did it Klitschko wasn't expecting it to happen. It was a point tournament.

[Redback Rasta]

John Wayne Parr was a national and IBF Pan Pacific boxing champion prior to turning his attention to kickboxing and muay thai where he won numerous world titles over a long and decorated career. He then returned to boxing for one last fight, defeating former world title holder Anthony Mundine.

[p4p1]

John Wayne Parr was a national and IBF Pan Pacific boxing champion prior to turning his attention to kickboxing and muay thai where he won numerous world titles over a long and decorated career. He then returned to boxing for one last fight, defeating former world title holder Anthony Mundine.

JWP was always a Muay Thai fighter first. He originally moved to Thailand to train when he was 20 after winning some national and regional titles.