Named the ACC Rookie of the Week on December 15, 2010 after his performance against USC Upstate where he came off the bench to score a then career-best 20 points, adding three steals, five assists, and no turnovers.

[5] Harrow had a slow start to his sophomore season, seeing just 10 minutes of play in the season-opener against Maryland due to reported flu-like symptoms.

Playing time started to pick back up through non-conference games against Notre Dame and Baylor.

Harrow showed promise in an early non-conference game against Eastern Michigan in which he totaled 15 points shooting 4-of-5 from 3-point range, grabbed four steals, and reached a season-high eight assists.

He followed that game by scoring a team-high 16 points in SEC debut victory over Vanderbilt with four rebounds and four assists.

He led all scorers with 19 points in a win over Mississippi State while grabbing seven rebounds and dishing a game-high four assists.

Showing a great deal of emotion, Harrow blamed himself while fighting tears in post game interviews.

"[7] Head coach, John Calipari, said in a statement, "Given the health of his dad, we fully support Ryan's decision to transfer to Georgia State to be closer to his family in Atlanta.

Ryan was a vital part of this year's team and an important player in practice during our 2011–12 national championship run.

I know the Big Blue Nation will keep a close eye on him and wish him well as he continues his basketball career and his pursuit of a college degree.

Harrow scored 27 points at old foe, Vanderbilt, to earn Sun Belt Player-of-the-Week honors.

Finished with 18 points, seven assists and five rebounds, going 7-of-7 from the free throw line in win over UL Lafayette.

Finished the season with a career-high 37 points, going 11-of-12 from the free throw line in an 81–82 overtime loss to UL Lafayette in the Sun Belt championship game.

GSU finished that year as regular season Sun Belt Conference champs with a 17–1 SBC record.

He went 130-of-155 (83.9%) from the free throw line, the eighth-best mark in GSU history and third in the Sun Belt that season.

Harrow went on a streak of 24 straight free throws, then the second-longest stretch in program history.

[9] In his final season, Harrow again earned All-Sun Belt First-Team and NABC All-District 24 Region honors.

He scored another team-high 23 points on 8-of-11 shooting against Chicago State in the CBE Hall of Fame Classic.

GSU finished as both the regular season and tournament champions in the Sun Belt Conference.

Personally, Harrow reached 1,000 points in a GSU uniform in just 54 games, the second-quickest in program history–quicker than teammate, R. J.

After going undrafted in the 2015 NBA draft, Harrow signed his first professional contract with Rethymno Cretan Kings of the Greek Basket League on July 24, 2015.