Brendan McMahan
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NWC May op | 05/??/1983 | 848 | United States |
Most Played Openings as White
| ECO | Opening | Games |
Most Played Openings as Black
| ECO | Opening | Games |
| A42 | Modern defence, Averbakh system | 1 games |


United States