| Yellow | Clubs | VS Club | Date | Sections | |
|---|---|---|---|---|---|
| 5 | Houston Dynamo | Sporting Kansas City | 27-10-2017 | Western Conference Knockout | Match details |
| 5 | Sporting Kansas City | Houston Dynamo | 27-10-2017 | Western Conference Knockout | Match details |
| 4 | Vancouver Whitecaps | Seattle Sounders | 03-11-2017 | Western Conference Semi Finals | Match details |
| 3 | Houston Dynamo | Seattle Sounders | 01-12-2017 | Western Conference Final | Match details |
| 3 | Columbus Crew | Toronto FC | 22-11-2017 | Eastern Conference Final | Match details |
| 3 | Portland Timbers | Houston Dynamo | 06-11-2017 | Western Conference Semi Finals | Match details |
| 3 | New York Red Bulls | Toronto FC | 05-11-2017 | Eastern Conference Semi Finals | Match details |
| 3 | Toronto FC | New York Red Bulls | 05-11-2017 | Eastern Conference Semi Finals | Match details |
| 3 | Columbus Crew | Atlanta United | 27-10-2017 | Eastern Conference Knockout | Match details |
| 2 | Seattle Sounders | Houston Dynamo | 01-12-2017 | Western Conference Final | Match details |
