| event | round | table | player one | result | player two |
| Pro Tour San Juan 2010 | 8 | 57 | Costa, Matthew (1737) | Lost 1-2 | Stark, Ben S (1766) |
| Grand Prix San Diego 2013 | 4 | 169 | Costa, Matthew (1817) | Won 2-1 | Stark, Ben S (2296) |
| Grand Prix Houston 2013 | 7 | 13 | Costa, Matthew (1983) | Lost 0-2 | Stark, Ben S (2094) |
| Grand Prix Toronto 2015 | 10 | 43 | Costa, Matthew (1939) | Lost 1-2 | Stark, Ben S (1952) |
| Grand Prix Barcelona 2016 | 7 | 216 | Costa, Matthew (1985) | Lost 0-2 | Stark, Ben S (2116) |