Mount Si complete an unlikely run to their first girls' 4A championship as the 12th-seeded Wildcats blank Tahoma, 2-0, in the final. Reese Stanley and Bella Seidenstucker score in the first half for Mount Si, which had never advanced past quarterfinals previously. but toppled top seed Issaquah in the semifinals. Second-seeded Tahoma was seeking its third title overall and first in 20 years.

Lamar Neagle’s hat trick leads the onslaught as Seattle erupts for a club-record six goals against Columbus, its third straight win and part of an five-match wins streak across all competitions. Neagle put Seattle up after just four minutes and, following a Mauro Rosales penalty, makes it 3-0 on a 21' volley. His hat trick is completed with a 71' banger from the top of the box. Columbus’s Jeff Cunningham becomes the MLS career scoring leader on a second-half penalty.

Sailors from Russian and West German ships moored in Seattle play to a 2-2 tie before their cheering crew mates at Lower Woodland. The local immigration office, shipping agents, a tour bus company and Seattle Parks partner to bring about the match between the supply ship Kulmerland and the Vladimir Mayakovsky. The Kulmerland weighs anchor two hours after the match's completion. Port officials note that seamen from about 60 different nations visit each year.

Cliff McCrath is voted 1986 Seattle Sports Star of the Year at the Seattle Sheraton’s Grand Ballroom, becoming the first soccer figure to earn the award in its 53-year history. McCrath, up for the award for the fourth time, is coming off the first ever back-to-back NCAA Division II championships at Seattle Pacific. His win is the first in 10 years by a representative coming from other than the Seahawks, Sonics or Washington Huskies football team. Over 1,000 attendees vote and presenting the award are Gov. Booth Gardner, Seattle Post-Intelligencer publisher Virgil Fassio and P-I sports editor Bill Knight.

Hosting 2026 World Cup matches in Seattle could cost the city over $10 million, according to estimates from Mayor Jenny Durkan's office. However, the estimates of $10.5M for five games would almost entirely offset by reimbursements from FIFA. Stadium security is the biggest expense, at $1.3M per game.

Coming off a perfect 1983 campaign, Western Washington opens with a resounding 9-0 thumping of Seattle University at the Chico Invitational. Debbie Carter scores five times as the Vikings' win their 25th straight.