31 Oct 1932
Jackie Brown beats Young Perez via corner retirement 13/15
Flyweight (112 lb)
Jackie Brown becomes the IBU and WBA Flyweight world champion
12 Jun 1933
Jackie Brown beats Valentin Angelmann via points decision 15/15
11 Dec 1933
Jackie Brown beats Ginger Foran via points decision 15/15
18 Jun 1934
Valentin Angelmann and Jackie Brown share a draw 15/15
3 Aug 1934
Jackie Brown's IBU Flyweight world title reign ends
9 Sep 1935
Benny Lynch beats Jackie Brown via knockout 2/15