Carl Schlechter vs Jackson Whipps Showalter
London London ENG round 3 1899.06.02
Queen’s Gambit Declined: Barmen Variation 1/2-1/2

Jackson Whipps Showalter vs David Janowski
Janowski - Showalter Match 1 New York, NY USA round 9 1898.12.10
Semi-Slav Defense Accepted 0-1

David Janowski vs Jackson Whipps Showalter
Janowski - Showalter Match 4 Lexington, KY USA round 3 1916.12.12
Amazon Attack 0-1

Geza Maroczy vs Jackson Whipps Showalter
London London ENG round 20 1899.06.26
French Defense: MacCutcheon Variation 1/2-1/2

Jackson Whipps Showalter vs Dr DT Phillips
Chicago Chess Tournament Chicago Chess and Checker Club; Chicago IL. USA round

• 1890.06.??
  French Defense: MacCutcheon Variation 1-0

Jackson Whipps Showalter vs Samuel Lipschutz
US championship match New York round 6 1895.11.11
Queen’s Gambit Declined: Orthodox Defense, Capablanca Variation 1-0

Jackson Whipps Showalter vs Emil Kemeny
Showalter - Kemeny US Championship Philadelphia, PA USA round 3 1896.02.29
Bishop’s Opening: Urusov Gambit 1-0

Jackson Whipps Showalter vs Adolf Albin
Showalter - Albin New York, NY USA round 4 1894.10.05
Dresden Opening: The Goblin 1-0

Adolf Albin vs Jackson Whipps Showalter
Showalter - Albin New York, NY USA round 19 1894.12.15
Ruy Lopez: Berlin Defense 1/2-1/2

Jackson Whipps Showalter vs Constant Ferdinand Burille
6th American Chess Congress New York, NY USA round 3 1889.03.27
Italian Game: Evans Gambit 1-0