Harold Larsen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Buenos Aires ol (Men) | 10/25/1978 | 2313 |  Argentina |
Most Played Openings as White
| ECO | Opening | Games |
| B84 | Sicilian, Scheveningen (Paulsen), classical variation | 1 games |
| B20 | Sicilian defence | 1 games |
| B54 | Sicilian | 1 games |
| B13 | Caro-Kann, exchange variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B51 | Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack | 1 games |
| B76 | Sicilian, dragon, Yugoslav attack, 7...O-O | 1 games |
| B93 | Sicilian, Najdorf, 6.f4 | 1 games |
