22 Feb 1990
Thongchai Utaida beats Eric Chavez via knockout 7/12
Minimumweight (105 lb)
Thongchai Utaida becomes the IBF Minimumweight world champion
14 Jun 1990
Thongchai Utaida beats Joe Constantino via unanimous decision 12/12
15 Aug 1990
Thongchai Utaida beats Eric Chavez via unanimous decision 12/12
20 Dec 1990
Thongchai Utaida and Pretty Boy Lucas share a draw 12/12
2 Jul 1991
Thongchai Utaida beats Abdi Pohan via unanimous decision 12/12
21 Oct 1991
Thongchai Utaida beats Andy Tabanas via unanimous decision 12/12
23 Feb 1992
Thongchai Utaida beats Felix Naranjo via knockout 2/12
14 Jun 1992
Thongchai Utaida beats Said Iskandar via knockout 8/12
6 Sep 1992
Manny Melchor beats Thongchai Utaida via split decision 12/12
3 Feb 2001
Andy Tabanas and Thongchai Utaida share a draw 12/12
Light Flyweight (108 lb)
29 Sep 2001
Nelson Dieppa beats Thongchai Utaida via unanimous decision 12/12
15 May 2004
Jose Burgos beats Thongchai Utaida via knockout 6/12
5 Apr 2005
Muhammad Rachman and Thongchai Utaida share a draw 12/12