, 6-0.
| event |
round |
table |
player one |
result |
player two |
| Grand Prix Washington DC 2014 | 8 | 192 | Manfield, Seth (2002) | Won 2-1 | Betesh, Ralph (1606) |
| Grand Prix Seattle-Tacoma 2015 | 5 | 65 | Manfield, Seth (2149) | Won 2-1 | Betesh, Ralph (1955) |
| Grand Prix New York 2016 | 15 | 2 | Manfield, Seth (2259) | Won 2-0 | Betesh, Ralph (2070) |
| Grand Prix New York 2016 | Q | | Manfield, Seth (2273) | Won 2-1 | Betesh, Ralph (2055) |
| Grand Prix Costa Rica 2016 | 10 | 17 | Manfield, Seth (2236) | Won 2-0 | Betesh, Ralph (2067) |
| Grand Prix Pittsburgh 2017 | 4 | 67 | Manfield, Seth (2147) | Won 2-1 | Betesh, Ralph (1891) |