01/24/1921 Jack Curley - New York, NY (8,000)
Ed "Strangler" Lewis vs. Earl Caddock

02/06/1921 - New York, NY - Madison Square Garden [II]
Nat Pendleton drew Wladek Zbyszko (20:00)

02/14/1921 - New York, NY - 71st Regiment Armory (6,000)
Earl Caddock def Jim Londos (2:08:03)

02/21/1921 - New York, NY - Madison Square Garden [II]
Wladek Zbyszko def Joe Stecher

03/14/1921 Jack Curley - New York, NY - 71st Regiment Armory
Alexander Gedlund vs. Emil HInes
Jim Londos vs. Farmer Bailey
John Pesek vs. Tommy Draak
Stanislaus Zbyszko vs. Joe Stecher

04/04/1921 Jack Curley - New York, NY (4,000)
Ed "Strangler" Lewis def Joe Pesek

05/06/1921 - New York, NY - 22nd Regiment Armory
World Heavyweight Title*: Stanislaus Zbyszko def Ed "Strangler" Lewis (23:17)

05/16/1921 Jack Curley - New York, NY (10,000)
World Heavyweight Title*: Stanislaus Zbyszko def Ed "Strangler" Lewis

10/04/1921 - New York, NY - Pioneer Athletic Club (cancelled)
Wladek Zbyszko vs. Cliff Binckley

12/01/1921 - New York, NY
Wladek Zbyszko def Frank Nelson

12/20/1921 - New York, NY - Commonwealth Sporting Club
Wladek Zbyszko def Jussiana De Silva