Muangchai Kittikasem

Nattawut Chantaravinom (, born 11 November 1968 in Chainat), known as Muangchai Kittikasem (), is a former boxer from Thailand. He was first Thai world champion in two weightclasses.
Muay Thai Career.
He claims to have fought around forty to fifty Muay Thai in fights in ring name Jingjok Uvichaiyont () but never won any championships. He changed to boxing when a promoter needed a short-term replacement on one of his cards.
Professional Boxing Career.
The relentless pressure fighter Kittikasem started to fight professionally in 1988.
In only his 7th bout 1989 he won the IBF title on points vs the Filipino Tacy Macalos and defended it against the same fighter by KO. After two defenses he went to the United States to defend the crown against undefeated amateur star Michael Carbajal in 1990. After a gutsy performance he was knocked down four times and stopped round 7. His chin was always his major weakness.
He went up in weight and won the WBC and Lineal Flyweight Titles by KO in the 6 round against his countryman Sot Chitalada the very next year. Kittikasem KOd Jung Koo Chang and stopped Chitalada once again in the rematch.
He lost the titles against another amateur star in the Russian amateur world champ Yuri Arbachakov, still in 1992. The fight took place in the Russian's adopted country Japan, it was an explosive KO when Kittikasem ran right in a counter. In 1993, he was KO'd one more time by Arbachakov, this time in Thailand.
He had a couple more fights but never contended again.
These days he owns a used car dealership in Thawi Watthana District, Bangkok, he is married with two children.