In his freshman season, Gragg played in all twelve of the Arkansas Razorbacks' games as the team finished with a 5–7 win–loss record.
During the second game of the season, against the Louisiana–Monroe Warhawks, Gragg caught a 25-yard pass from quarterback Casey Dick on fourth down and one to continue a drive that ended with a game-winning touchdown.
The catch was Gragg's only reception in 2008.
In spring 2009, Gragg converted into a tight end, which made three slots at the position on the Razorbacks' depth chart.
He was given a medical redshirt and did not play during the 2009 season after he dislocated his ankle in a preseason practice.

In September 2010, Gragg was listed as the number three tight end on the Razorbacks' depth chart.
When Arkansas faced the Georgia Bulldogs on September 18, 2010, Gragg caught a touchdown from a 57-yard pass for his first reception of the year.
The 2010 Arkansas Razorbacks ended the year with a 10–3 record, and were invited to play in the Sugar Bowl against the Ohio State Buckeyes, a game that Arkansas lost 31–26.
Gragg made one catch in the contest for 16 yards; he finished the year with 8 receptions for 171 yards and two touchdowns.

Prior to the 2011 season, Gragg replaced D. J. Williams, a first-string tight end who graduated in 2010.
In the Razorbacks' eleventh game of the season, Gragg caught 8 passes for 119 yards, both single-game career highs, as the team defeated the Mississippi State Bulldogs and moved to a 10–1 record.
After the game, the Bowl Championship Series (BCS) system, which averaged team positions in the Harris Interactive College Football Poll, the Coaches' Poll, and six computer rankings to list teams by their combined average position, ranked Arkansas as the third-best team in the nation, behind the Louisiana State University Tigers and the Alabama Crimson Tide, with the former scheduled as the Razorbacks' next opponent.
After a loss to the Tigers, the Razorbacks fell out of contention for the BCS National Championship Game, a game in which the top two teams in the BCS poll played at the end of the regular season.
Arkansas finished the year ranked sixth in BCS standings and were invited to play in the 2012 Cotton Bowl Classic, where they defeated the Kansas State Wildcats 29–16: with the victory, Arkansas tied a team record for most wins in a season.
Over the season, Gragg caught 41 receptions, third most on the team, for 518 yards and two touchdowns.

In July 2012, Gragg was listed as a preseason nominee for the John Mackey Award, a recognition presented annually by the Nassau County Sports Commission to the best tight end in college football, and was voted to the second team of the Coaches Preseason All-Southeastern Conference (SEC) squad, an honorific roster composed of the second-best players in the SEC.
Also in July, ESPN writers Edward Aschoff and Chris Low ranked Gragg as the best tight end in the conference.
In Arkansas' season opener against the Jacksonville State Gamecocks, Gragg accumulated 110 yards and two touchdowns over 7 catches, a performance for which he earned the John Mackey Tight End of the Week award.
On September 9, Gragg suffered a bone bruise in his knee against the Rutgers Scarlet Knights which caused him to miss the next three games; upon return, Gragg reaggravated the injury and missed the remainder of the season's matches.
He finished his final season at Arkansas with 22 receptions for 289 yards and three touchdowns, while the team ended with a 4–8 record.
After his senior year, Gragg participated in the NFL Scouting Combine, an evaluative competition among prospective NFL players, where he ran the fastest 40-yard dash time, the third-fastest 3 cone drill, had the longest broad jump, and the highest vertical jump among tight ends in attendance.
In his freshman season, Gragg played in all twelve of the Arkansas Razorbacks' games as the team finished with a 5–7 win–loss record. During the second game of the season, against the Louisiana–Monroe Warhawks, Gragg caught a 25-yard pass from quarterback Casey Dick on fourth down and one to continue a drive that ended with a game-winning touchdown. The catch was Gragg's only reception in 2008. In spring 2009, Gragg converted into a tight end, which made three slots at the position on the Razorbacks' depth chart. He was given a medical redshirt and did not play during the 2009 season after he dislocated his ankle in a preseason practice.
In September 2010, Gragg was listed as the number three tight end on the Razorbacks' depth chart. When Arkansas faced the Georgia Bulldogs on September 18, 2010, Gragg caught a touchdown from a 57-yard pass for his first reception of the year. The 2010 Arkansas Razorbacks ended the year with a 10–3 record, and were invited to play in the Sugar Bowl against the Ohio State Buckeyes, a game that Arkansas lost 31–26. Gragg made one catch in the contest for 16 yards; he finished the year with 8 receptions for 171 yards and two touchdowns.
Prior to the 2011 season, Gragg replaced D. J. Williams, a first-string tight end who graduated in 2010. In the Razorbacks' eleventh game of the season, Gragg caught 8 passes for 119 yards, both single-game career highs, as the team defeated the Mississippi State Bulldogs and moved to a 10–1 record. After the game, the Bowl Championship Series (BCS) system, which averaged team positions in the Harris Interactive College Football Poll, the Coaches' Poll, and six computer rankings to list teams by their combined average position, ranked Arkansas as the third-best team in the nation, behind the Louisiana State University Tigers and the Alabama Crimson Tide, with the former scheduled as the Razorbacks' next opponent. After a loss to the Tigers, the Razorbacks fell out of contention for the BCS National Championship Game, a game in which the top two teams in the BCS poll played at the end of the regular season. Arkansas finished the year ranked sixth in BCS standings and were invited to play in the 2012 Cotton Bowl Classic, where they defeated the Kansas State Wildcats 29–16: with the victory, Arkansas tied a team record for most wins in a season. Over the season, Gragg caught 41 receptions, third most on the team, for 518 yards and two touchdowns.
In July 2012, Gragg was listed as a preseason nominee for the John Mackey Award, a recognition presented annually by the Nassau County Sports Commission to the best tight end in college football, and was voted to the second team of the Coaches Preseason All-Southeastern Conference (SEC) squad, an honorific roster composed of the second-best players in the SEC. Also in July, ESPN writers Edward Aschoff and Chris Low ranked Gragg as the best tight end in the conference. In Arkansas' season opener against the Jacksonville State Gamecocks, Gragg accumulated 110 yards and two touchdowns over 7 catches, a performance for which he earned the John Mackey Tight End of the Week award. On September 9, Gragg suffered a bone bruise in his knee against the Rutgers Scarlet Knights which caused him to miss the next three games; upon return, Gragg reaggravated the injury and missed the remainder of the season's matches. He finished his final season at Arkansas with 22 receptions for 289 yards and three touchdowns, while the team ended with a 4–8 record. After his senior year, Gragg participated in the NFL Scouting Combine, an evaluative competition among prospective NFL players, where he ran the fastest 40-yard dash time, the third-fastest 3 cone drill, had the longest broad jump, and the highest vertical jump among tight ends in attendance.
Chris Gragg