The 2018 WNBA season is the 21st for the Washington Mystics of the Women's National Basketball Association which began on May 20, 2018.
The Mystics lost 4 of their first 5 games in June, but turned it around in the second half of the month, winning 4 of their last 5.
The Mystics won seven straight games before dropping their season finale against Minnesota.
The Mystics hosted a second round playoff game against the Los Angeles Sparks and won 96–64.
An injury to star Elena Delle Donne in the semifinals hampered her in the finals, and the Mystics were swept 0–3.