2012: (1 GP/1 GS)... Started at center at Monmouth (9/8) and was part of effort that allowed zero sacks.
 
2011: Appeared in nine games and made eight starts at center... Named to the CAA All-Academic team for the third consecutive season... One of 22 football student-athletes nationally named to the 2011 Allstate AFCA Good Works Team. One of the most prestigious off-the field honors in college football for the past 20 years, the Good Works Team award recognizes a select group of college football players committed to making a difference in their communities. In 2011, Greenhalgh donated his bone marrow to help save the life of a leukemia patient... Honored by the coaching staff as the team’s A.A. Savastano Scholar-Athlete Award winner, given to a team member for outstanding academic achievement.

2010: Started at center in the season opener at Buffalo (9/2), but suffered a season-ending injury during the game... Named to the CAA All-Academic team for the second-consecutive season... Was selected as a perfect six-for-six match for a bone marrow donation in the spring.

2009: Appeared in three games and started one game at home against Towson (10/10)... Against Towson, he helped the offensive unit post 166 yards rushing.

2008: Did not play.

High School: Four-year letterwinner at Ponaganset High School for head coach Thomas Marcello... Providence Journal Second Team - Offense as a senior captain in 2007, when he posted 76 tackles (43 solo), two fumble recoveries, and one blocked punt as Ponaganset won the Rhode Island Division III Super Bowl/State Championship... Helped offense rush for 1,600+ yards and pass for 2,000+ yards... Three-time DIII All-Academic selection (2005-07)... 2007 DIII All-Division First Team... 2006 DIII All-Division Second Team... Ranked No. 10 in Rhode Island with four sacks in 2007... Season-high 10 tackles (seven solo) against Johnston (11/4/07)... Recorded two sacks against Narragansett (10/6/07)... 2006 Providence Journal Division III Second Team - Offense... Registered 58 tackles (41 solo) and 5.5 sacks as a junior... Member of National Honor Society and Rhode Island Honor Society... Works with TOPS Program mentoring the same child for four years.

Personal: Born March 14, 1990... Son of John and Laurie Greenhalgh... Has one brother - John... His father played football and competed in track at Southern Illinois from 1977-78... Lists Dick Butkus as his favorite athlete and the Boston Red Sox and New England Patriots as his favorite teams.