A dynamic two-sport athlete, Greenwood was just as successful on the track as he was on the gridiron. Greenwood was voted to the All-WVIAC First Team in 2007 after playing both quarterback and wide receiver as a senior. On the track and in the field events, Greenwood excelled becoming a two-time individual conference champion as he won the 110-meter hurdles and decathlon in 2008. One of Greenwood's best events throughout college was the javelin throw. In the spring of 2008, Greenwood became one of five athletes under head coach Mike Cox to qualify for the NCAA Championship Meet after Greenwood met the standard and advanced to the national meet in Walnut, California.