Reggie Smith began his athletic career at New Brighton High School, where he was an accomplished a three-sport athlete in football, basketball, and track and field. Reggie's career continued at Robert Morris University in track and field.

Following years of umpiring sandlot baseball, in 1994 Reggie joined the PIAA as an umpire. In 1999, he became a member of the Beaver Valley Football and Basketball Officials Association, and, two years later, became a three-sport official when he joined the Beaver County Baseball Umpires Association. In 2003, Reggie focused his officiating career on football and joined the Tri-State Officials Association and the Eastern Collegiate Football Officials Association.

In 2004, Reggie was hired into the Arena2 Football League, under the guidance of the NFL, and was assigned as a line judge (2004-5) and as a referee (2006). Within two years, Reggie was promoted to the Arena Football League, assigned as a back judge (2007-9) and as a referee (2011-16). In 2005, Reggie was hired with Conference USA as a supplemental official.

Reggie's NCAA Division I football officiating career began as a supplemental official in Conference USA (2005-8). In 2006, in addition to working in Conference USA, Reggie worked as a side judge in the Atlantic 10/Ivy and Patriot Leagues. In 2007, Reggie worked the final season of NFL Europa as a side judge.

Reggie was hired in 2009 with the Big 12 Conference and Mountain West Conference, as a field judge (2009-11) and assigned as a referee (2011-present). In 2010, Reggie was selected to his first bowl, the Holiday Bowl between Washington and Nebraska. Over the years, Reggie has worked two Mountain West Conference Championships (2014, 2015) and seven bowl games, most notably as the Referee in the 2016 Rose Bowl.

Reggie has served as the liaison between West Virginia University and Big 12 Conference for scheduling officials for practices and scrimmages, as well as evaluating and advising potential Big 12 football officiating applicants. In addition, Reggie has evaluated the Big Sky Officials (FCS), providing feedback for training and development. Reggie is also active nationwide as a clinician at several camps and clinics dedicated to the training and evaluations of officials ranging from high school to small college.

Reggie and his wife Stephanie have two children: Alexis and Maximus. Reggie works as a commercial property appraiser, working on nationwide accounts.