| 1. Round | 20/03/1998 | Los Angeles Galaxy | - | San Jose Clash | n.P. | ||||
| 1. Round | 27/03/1998 | Los Angeles Galaxy | - | MetroStars | 3:2 | ||||
| 2. Round | 03/04/1998 | Colorado Rapids | - | Los Angeles Galaxy | 0:1 | ||||
| 2. Round | 10/04/1998 | MetroStars | - | Los Angeles Galaxy | 2:3 | ||||
| 2. Round | 17/04/1998 | Kansas City Wizards | - | Los Angeles Galaxy | 1:2 | ||||
| 3. Round | 16/05/1998 | Columbus Crew | - | Los Angeles Galaxy | 2:4 | ||||
| 3. Round | 19/05/1998 | Chicago Fire | - | Los Angeles Galaxy | 3:1 | ||||
| 3. Round | 29/05/1998 | Los Angeles Galaxy | - | Chicago Fire | n.P. | ||||
| 4. Round | 03/06/1998 | Dallas Burn | - | Los Angeles Galaxy | 1:8 |  |
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| 4. Round | 06/06/1998 | Los Angeles Galaxy | - | New England Revolution | 5:1 | ||||
| 4. Round | 17/06/1998 | Los Angeles Galaxy | - | Colorado Rapids | 2:1 | ||||
| 4. Round | 26/06/1998 | San Jose Clash | - | Los Angeles Galaxy | 1:2 | |
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| 5. Round | 17/07/1998 | Los Angeles Galaxy | - | Miami Fusion | n.P. | ||||
| 5. Round | 24/07/1998 | Los Angeles Galaxy | - | D.C. United | 0:1 | ||||
| 5. Round | 28/07/1998 | Dallas Burn | - | Los Angeles Galaxy | 3:0 |
Armenia
USA