Farr played high school football at John F. Kennedy High School in Richmond, California. In college, he was a member of the undefeated 1991 University of Washington team that won the CNN/USA Today NCAA National Championship.
Farr was signed as an undraftedfree agent by the Los Angeles Rams out of the University of Washington in 1994. He had his best season in 1995 when he recorded 11.5 sacks and 1 interception. Farr recorded 8.5 sacks in the Rams' 1999 Super Bowl season.
After his playing career ended, Farr became a regular on the sports talk show The Best Damn Sports Show Period on Fox Sports Net. He has remained on FSN as a co-host of the network's college football coverage.
From 2005 until September 2007,[1] Farr hosted the D'Marco Farr Show with Kevin Kiley on KSPN in Los Angeles.[2] On September 21, 2007, co-host Kevin Kiley announced that Farr had "retired from sports radio" to "pursue opportunities in professional football". Previously, until November 2006, Farr was the co-host with Gary Miller; however, Miller was fired and replaced by guest hosts[3] until January 2007, when Kevin Kiley joined the show as co-host.[4] Farr is now a part of the St. Louis Rams broadcasts, doing TV color commentary for KTVI FOX 2 in the preseason, and providing analysis for radio broadcasts during the season, previously for 103.3 KLOU, and as of 2008, 101.1 WXOS. He also is a part of the station's afternoon drive program, The Fast Lane, with Chris Duncan and Randy Karraker. As of 2009, Farr is now the lead color commentator for the Rams Radio broadcasts on 101 ESPN. He replaced former coach Jim Hanifan.