6 Oct 1983
Jiro Watanabe beats Kwon Soon-chun via technical decision 11/15
Super Flyweight (115 lb)
24 Dec 1983
Kwon Soon-chun beats Rene Busayong via knockout 5/15
Flyweight (112 lb)
Kwon Soon-chun becomes the IBF Flyweight world champion
25 Feb 1984
Kwon Soon-chun beats Roger Castillo via technical decision 12/15
19 May 1984
Kwon Soon-chun beats Ian Clyde via unanimous decision 15/15
7 Sep 1984
Kwon Soon-chun beats Joaquin Flores Caraballo via knockout 12/15
25 Jan 1985
Kwon Soon-chun beats Chung Jong-kwan via split decision 15/15
15 Apr 1985
Kwon Soon-chun beats Shinobu Kawashima via knockout 3/15
17 Jul 1985
20 Dec 1985
Chung Jong-kwan beats Kwon Soon-chun via knockout 4/15
17 May 1987
Chang Tae-il beats Kwon Soon-chun via split decision 15/15