Reirden, 47, becomes the 18th coach in Capitals history, after serving as an associate coach the last two seasons and assistant coach from 2014-16. Reirden has established himself as an experienced coach at a variety of levels. Prior to joining the Capitals, Reirden spent four seasons as an assistant coach with the Pittsburgh Penguins, where he helped the team capture the Stanley Cup in 2009.
In his four previous seasons with the Capitals, Reirden was responsible for the team's defensemen. During that span, the Capitals have posted a record of 205-89-34 and ranked second in goals against average (2.45). This season, Washington defensemen combined for 176 points, including 138 at even strength. Capitals defenseman John Carlson led the NHL with 68 points, marking the fourth time in the last 10 seasons a defenseman has finished in the top-10 among defensemen scoring, the second to finish in the top-two and the first to finish first under Reirden.