He played college football for the Colorado State Rams and was selected by the New York Giants in the second round of the 2014 NFL draft.

As a senior, he recorded two sacks as a defensive lineman, but earned first-team all-district honors on the offensive line.

The Bushland Falcons went undefeated (10–0) through the regular season, but lost in the first round of the UIL 2A Division I playoffs to eventual state champion Muleshoe.

He captured the state title in the shot put event at the 2009 UIL T&F Championships, with a PR throw of 18.34 meters (60 ft 1 in), setting a school record, that ranks as the fourth-best throw by a Texas prep athlete in any classification and worthy of the Texas Class 2A gold medal.

Regarded as a two-star recruit by Rivals.com, Richburg was not ranked among the best offensive lineman of the class of 2009, which also included D. J. Fluker and Taylor Lewan.

In Week 3 against the Washington Redskins on September 25, 2016, Richburg was ejected for committing two unsportsmanlike conduct penalties; the second came for pushing Josh Norman.