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