[10] In 2011, the band traveled internationally to participate in the 2011 London, England New Year's Day Parade & Festival upon royal invitation.

[14][15] The Mercer Island High School marching band has also performed during the halftimes of several Seattle Seahawks football games at Lumen Field.

[22] The girls tennis team has won 25 state titles and has been inducted into the Washington Interscholastic Activities Association Hall of Fame.

[23] The basketball team, formerly coached by all-time Washington state wins leader Ed Pepple,[24] recorded its first losing season in 38 years in 2006.

[25] At 64-65 to Mercer Island, a last-second shot by Shadle Park "depending on who you are listening to, either clearly did or clearly didn’t beat the air horn.