7 Jul 1914
Freddie Welsh beats Willie Ritchie via points decision 20/20
Lightweight (135 lb)
Freddie Welsh becomes the IBU Lightweight world champion
27 Oct 1914
Freddie Welsh beats Matty Baldwin via points decision 12/12
26 Nov 1914
Freddie Welsh beats Young Abe Brown via newspaper decision 10/10
15 Feb 1915
Freddie Welsh beats Jimmy Anderson via newspaper decision 6/6
25 Feb 1915
Freddie Welsh beats Charley White via newspaper decision 10/10
11 Mar 1915
Willie Ritchie beats Freddie Welsh via newspaper decision 10/10
9 Apr 1915
Freddie Welsh beats Billy Wagner via newspaper decision 10/10
24 May 1915
Freddie Welsh beats Frankie Fleming via newspaper decision 10/10
3 Jul 1915
Charley White beats Freddie Welsh via newspaper decision 10/10
15 Nov 1915
Freddie Welsh beats Johnny O'Leary via newspaper decision 12/12
31 Mar 1916
Benny Leonard beats Freddie Welsh via newspaper decision 10/10
4 Jul 1916
Freddie Welsh beats Ad Wolgast via disqualification 11/15
4 Sep 1916
Freddie Welsh beats Charley White via points decision 20/20
22 Sep 1916
Freddie Welsh beats Harry Anderson via points decision 4/4
17 Apr 1917
Freddie Welsh beats Battling Nelson via newspaper decision 12/12
28 May 1917
Benny Leonard beats Freddie Welsh via knockout 9/10