Sims was the 2018, 2019 and 2020 National Sports Media Association's Washington state Sportscaster of the Year.
Moving to radio, Sims became the host of WNBC's SportsNight (1986–1988) (replacing Jack Spector), a five-hour nightly sports call-in show that was a precursor to the all-sports talk format of WFAN.
[7] He was hired by Michael Weisman as a reporter covering track and field for NBC Sports' telecast of the 1988 Summer Olympics.
Sims' play-by-play announcing career began (1990–1992) as the radio voice of Temple Owls football in the Big East.
In addition to Sunday Night Football, Sims also called college basketball for Westwood One (1998–2014) with his most notable call to date being the George Mason-UConn regional final in 2006 (where #11 seed George Mason upset top-seed Connecticut to become the second #11 seed in history to reach the Final Four).
While working in other sports, he occasionally provided Major League Baseball play-by-play for ESPN (1993–1994) and did an internet radio show for MLB.com (1999–2000).
[10] Sims was the broadcaster on Fox on April 21, 2012, describing Philip Humber's perfect game.
[12] After the 2024 season, Sims was hired by WFAN to be the radio play-by-play announcer for the New York Yankees, succeeding John Sterling.