| 
Event table notes
 | 
| Event data |  | 
   | Place: New York |  
   | Start date: Apr. 1899 |  
   | End date:   Apr. 1899 |  |  |  
   | Notes: |  
   | According to Hooper and Whyld this was a formal match and they give the result as +4-1=2 for Showalter, rather than +4-2=1 as given by Feenstra Kuiper, Di Felice, and Davies. Davies says that this and the previous match between Showalter and Janowsky were played in March and April 1899. I am supposing that this one took place in April, though it may have started in March. |  |  |  |  
   | References |  | 
| Books |  
   | Davies, Samuel Lipschütz, page 321 |  
   | Di Felice, Chess Results, 1747-1900, page 197 |  
   | Elo, Rating of Chessplayers, page 91 |  
   | Feenstra Kuiper, 100 Jahre Schachzweikämpfe, page 31 |  
   | Hooper and Whyld, Oxford Companion (1st ed.), page 309 |  
   | Sunnucks, Encyclopaedia of Chess, page 454 |  |  |