Home History
| USA MLS | 2015/06/14 02:00 | Seattle Sounders v FC Dallas | W | 3-0 |
| USA MLS | 2015/06/07 00:30 | Sporting Kansas City v Seattle Sounders | L | 1-0 |
| USA MLS | 2015/05/31 21:00 | Seattle Sounders v New York Red Bulls | W | 2-1 |
| USA MLS | 2015/05/28 02:00 | Seattle Sounders v Colorado Rapids | W | 1-0 |
| USA MLS | 2015/05/24 02:00 | Seattle Sounders v Sporting Kansas City | D | 0-0 |
| USA MLS | 2015/05/16 23:00 | Vancouver Whitecaps v Seattle Sounders | W | 0-2 |
| USA MLS | 2015/05/09 23:30 | Columbus Crew v Seattle Sounders | L | 3-2 |
| USA MLS | 2015/05/03 23:00 | New York City FC v Seattle Sounders | W | 1-3 |
Away History
| USA MLS | 2015/06/07 02:30 | Portland Timbers v New England Revolution | W | 2-0 |
| USA MLS | 2015/05/31 01:00 | Colorado Rapids v Portland Timbers | W | 1-2 |
| USA MLS | 2015/05/28 02:30 | Portland Timbers v DC United | W | 1-0 |
| USA MLS | 2015/05/23 21:00 | Toronto FC v Portland Timbers | L | 1-0 |
| USA MLS | 2015/05/17 00:30 | Houston Dynamo v Portland Timbers | L | 3-1 |
| USA MLS | 2015/05/09 20:00 | CF Montreal v Portland Timbers | W | 1-2 |
| USA MLS | 2015/05/03 02:30 | Portland Timbers v Vancouver Whitecaps | D | 0-0 |
| USA MLS | 2015/04/27 01:30 | Seattle Sounders v Portland Timbers | L | 1-0 |