Jackson Whipps Showalter vs Geza Maroczy
Nuremberg Nuremberg GER round 19 1896.08.10
Queen’s Gambit Declined: Barmen Variation 0-1

Jackson Whipps Showalter vs Wilhelm Steinitz
11th DSB Kongress, Cologne Cologne GER round 13 1898.08.17
Ruy Lopez: Old Steinitz Defense, Semi-Duras Variation 1-0

Emanuel Lasker vs Jackson Whipps Showalter
Lasker - Showalter Kokomo, IN USA round 7 1893.04.24
Queen’s Gambit Declined: Barmen Variation 1-0

Jackson Whipps Showalter vs Edward Hymes
New York 1 round 1 1900.10.23
Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1-0

Adolf Albin vs Jackson Whipps Showalter
Showalter - Albin New York, NY USA round 21 1894.12.19
Ruy Lopez: Berlin Defense 1/2-1/2

Jackson Whipps Showalter vs Siegbert Tarrasch
Nuremberg Nuremberg GER round 2 1896.07.21
Queen’s Gambit Accepted 1/2-1/2

Jackson Whipps Showalter vs Albert Whiting Fox
Cambridge Springs Cambridge Springs, PA USA round 9.5 1904.05.09
Sicilian Defense: Closed 1/2-1/2

Jackson Whipps Showalter vs Emanuel Lasker
Lasker - Showalter Kokomo, IN USA round 4 1893.04.17
French Defense: Alekhine-Chatard Attack 1-0

Jackson Whipps Showalter vs John Finan Barry
Showalter - Barry US Championship Boston, MA USA round 4 1896.05.25
Bishop’s Opening: Urusov Gambit 1-0

Jackson Whipps Showalter vs John Winter
20th Western Championship Cincinnati, OH USA 1919.09.??
English Rat: Pounds Gambit 0-1