1. Round | 05/03/2018 | Los Angeles Galaxy | - | Portland Timbers | 2:1 | ||||
1. Round | 11/03/2018 | New York RB | - | Portland Timbers | 4:0 | ||||
1. Round | 24/03/2018 | FC Dallas | - | Portland Timbers | 1:1 | ||||
2. Round | 31/03/2018 | Chicago Fire | - | Portland Timbers | 2:2 | ||||
2. Round | 08/04/2018 | Orlando City | - | Portland Timbers | 3:2 | ||||
2. Round | 15/04/2018 | Portland Timbers | - | Minnesota United FC | 3:2 |