24 Jun 1912
Frank Klaus beats Georges Carpentier via disqualification 19/20
Middleweight (160 lb)
Frank Klaus becomes the NYSAC Middleweight world champion
5 Mar 1913
Frank Klaus beats Billy Papke via disqualification 15/20
1 May 1913
Frank Klaus becomes the IBU Middleweight world champion
11 Oct 1913
George Chip beats Frank Klaus via knockout 6/6