event | round | table | player one | result | player two |
Grand Prix Indianapolis 2013 | 11 | 58 | Costa, Matthew (1811) | Lost 0-2 | Rubin, Steve (1830) |
Grand Prix Ottawa 2014 | 14 | 56 | Costa, Matthew (2009) | Lost 0-2 | Rubin, Steve (2029) |
Grand Prix Baltimore 2014 | 7 | 82 | Costa, Matthew (2013) | Won 2-1 | Rubin, Steve (2030) |