Seth Manfield is tied in the series against
Reid Duke, 4-4.
| event |
round |
table |
player one |
result |
player two |
| Pro Tour Khans of Tarkir | 2 | 19 | Manfield, Seth (1978) | Won 2-1 | Duke, Reid (2021) |
| Grand Prix Quebec City 2015 | 10 | 1 | Manfield, Seth (2242) | Lost 0-2 | Duke, Reid (2194) |
| 2016 World Championship | 10 | 1 | Manfield, Seth (2215) | Won 2-0 | Duke, Reid (2120) |
| Grand Prix Indianapolis 2017 | 11 | 8 | Manfield, Seth (1914) | Lost 1-2 | Duke, Reid (2115) |
| 2018 World Championship | 4 | 10 | Manfield, Seth (2022) | Lost 1-2 | Duke, Reid (2002) |
| Grand Prix New Jersey 2018 | 15 | 14 | Manfield, Seth (2012) | Won 2-0 | Duke, Reid (2087) |
| Zendikar Rising Championship | 6 | 19 | Manfield, Seth (2305) | Won 2-0 | Duke, Reid (1920) |
| World Championship XXIX | 6 | 3 | Manfield, Seth (2092) | Lost 0-2 | Duke, Reid (2122) |