Harry Zirn
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| New York Metropolitan tt | ??/??/1922 | 0 |  United States |
| American Chess Bulletin | ??/??/1915 | 0 | United States |
| New York | ??/??/1912 | 0 | United States |
| Rice CC-Brooklyn CC | 02/12/1909 | 0 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| C14 | French, classical variation | 1 games |
| C42 | Petrov's defence | 1 games |
| C67 | Ruy Lopez, Berlin defence, open variation | 1 games |
| B34 | Sicilian, accelerated fianchetto, exchange variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 1 games |
| C87 | Ruy Lopez, closed, Averbach variation | 1 games |
| D05 | Queen's pawn game | 1 games |
