A two-time NCAA Division I College World Series umpire, Yeast also worked 23 Division I conference tournaments, 13 NCAA Division I regional tournaments, and one super regional.  Dave represented the United States internationally for numerous events, including the 1996 Olympic Games, the 1993 and 1999 Intercontinental Cups, and the 1990 World Championships. Yeast was named the 1999 International Baseball Federation Umpire of the Year by the International Baseball Federation.

In 2005 the American Baseball Coaches Association recognized Dave with their Meritorious Service Award and in 2008 the NCAA honored Dave with a pregame ceremony before the National Championship Game and presented him with their Distinguished Service Award.   In 2011 Dave was inducted into the St. Louis Amateur Baseball Hall of Fame.  He was inducted into the College Baseball Hall of Fame in 2021.

Yeast’s experience also includes over 10 years of officiating collegiate football and basketball.   He was selected to work the NCAA Division II football championships in 1998 and 1999. He has also worked as an Instant Replay Communicator for the NFL from 2008-2015.   He joined the Pac-12 Conference in football instant replay in 2016 and is currently the Supervisor of Football Instant Replay for the conference.