03/04/1900 - New York, NY - Star Theater
Ernest Roeber vs Professor Atlas

03/10/1900 - New York, NY - Broadway AC
Greco-Roman: Ernest Ziegler vs John Piening
Leo Pardello vs Edwin Ruh
Catch-as-catch-can: Max Brenner vs Eyerhardt Halm
Greco-Roman: John Kamerer vs Louis Wohleben

03/21/1900 - New York, NY - Madison Square Garden [II] (12,000)
American Greco-Roman Heavyweight Title*: Beck Olsen (1-1 UTC) Ernest Roeber
George Bother (2-0) Jack Ryan
William Johnston (2-0) Gus La Rose

03/22/1900 - New York, NY - Unique Theater
Greco-Roman: Kara Osman (NC) Louis Pardella

03/31/1900 - New York, NY - Hercules Club
August Foust vs Harry Hyams

05/23/1900 - Naugatuck, CT - Gem Opera House
New England Middleweight Title*: Charles W. Mayser (2-0) Frank Burns

11/30/1900 - New York, NY - Grand Central Palace
Greco-Roman: Paul Pons (2-0) John Piening

12/18/1900 - New York, NY - Grand Central Palace
Catch-as-catch-can: Ernest Roeber vs James J. Jeffries (boxing champion)
Paul Pons vs all comers
George Bothner vs Phil Brown
Hugh Leonard vs one of his pupils
Gustay Estel vs Fredrick Mohl

12/21/1900 - New York, NY - Grand Central Palace
Harvey Parker (20min plus 10min extension, dec) George Bothner
??? Heavyweight Title: John Piening (dec) August Faust

Researches by Don Luce