Korey McDuffie trails the series against
Owen Turtenwald, 1-4.
| event |
round |
table |
player one |
result |
player two |
| 2010 World Championship | 2 | 80 | McDuffie, Korey (1678) | Lost 0-2 | Turtenwald, Owen (1951) |
| Grand Prix Dallas-Fort Worth 2011 | 10 | 1 | McDuffie, Korey (1990) | Lost 0-2 | Turtenwald, Owen (2159) |
| Grand Prix Dallas-Fort Worth 2011 | Q | | McDuffie, Korey (1997) | Lost 0-2 | Turtenwald, Owen (2169) |
| Grand Prix Kansas City 2011 | 10 | 8 | McDuffie, Korey (1912) | Won 2-0 | Turtenwald, Owen (2129) |
| Grand Prix Nashville 2012 | 14 | 28 | McDuffie, Korey (1781) | Lost 1-2 | Turtenwald, Owen (1965) |