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