Nick Perera, Tacoma Stars player/coach, is voted the MASL Most Valuable Player after leading the league in scoring. Perera accumulated 80 points by scoring 39 goals and 41 assists, the latter also tops in MASL. He came to Tacoma in 2017-18 and in December 2018 replaced Darren Sawatzky as coach.

Dennis Lapchis tallies in the second half and his backed by Paul Maycock's shutout in Western Washington's 1-0 home win over Evergreen. It clinches the NCSC Cascade crown and promotion to the Olympic Division in 1990. The previous game Western beat Simon Fraser away for the first time, 2-1, to claim the District 1 North. Mark Miller tied it and Tom Venable won it.

Mike Ryan organizes a meeting at Seattle's Sherwood Inn for those women interested in forming a league. Over the next month, the Washington State Women's Soccer Association is formed, and Ryan, the Washington Huskies head coach, is elected the first president. The 10-team league features players ranging from teens to over 40, with clubs named Capitol Hill Streakers, University District Geoducks and West Seattle Ladybugs.

Seattle becomes the second MLS expansion franchise to win the Lamar Hunt U.S. Open Cup title with a 2-1 victory over D.C. United at RFK Stadium. Roger Levesque scores what proves to be the game-winning goal in the 86th minute on an assist by Sebastien Le Toux. Fredy Montero opens the scoring in the 67th minute after a Freddie Ljungberg shot was initially saved by United goalkeeper Josh Wicks. Moments after the goal, Wicks stomps on a fallen Montero and is sent off. After D.C. pulls a goal back, Kasey Keller makes two key saves in stoppage time, part of his six for the night, to preserve the victory.

Despite being ranked 19th nationally, Washington is bypassed by the NCAA selection committee for a second straight year. The Huskies (12-4-2) won seven of their last eight games, losing only to No. 10 UCLA. The Bruins won the Pac-12 and are the only team in the NCAA tournament.

Piles of volcanic ash are scattered around the Civic Stadium pitch as the Sounders visit Portland. After the city was spared much ash from the first two eruptions of Mount St. Helens in late May, a June 12 eruption caused the Portland area, previously spared by wind direction, to be thinly coated with ash in the middle of the annual Rose Festival. Rainfall prior to the match serves to wash away ash from the field. Seattle prevails over the Timbers in a shootout, 0-0 (4-3).