In the Spring of the 1995-96 school year, the Reading Memorial Boys Varsity Baseball team won their first State Championship.

The Reading Memorial High School Girls Basketball program was the 2012 Division II Massachusetts State Champions.

Reading Girls basketball capped an undefeated (25-0) 2012 season by defeating Central Champion Tyngsborough at the DCU Center in Worcester on March 17, 2012.

[6] The following year the team competed for the Eastern Division II Massachusetts State Championship, but fell in overtime to Medfield, 59-51.

On June 23, 2018, the Rockets' boys varsity lacrosse team won the MIAA Division 2 State Championship, defeating Concord-Carlisle High School, 13-9, at Boston University's Nickerson Field.