After having to sit out the 2001 season, he played for the Tusculum Pioneers from 2002 to 2004, setting school records for completions with 544, completion percentage with .635, passing yards with 6,207, and
total offensive yards with 6,964.[3][4][2] He earned second-team All-South Atlantic Conference honors in 2003.[4]
He joined the CenTex Barracudas of the Intense Football League (IFL) later in 2006 and completed 88 of 170 passes for 1,133 yards and 29 touchdowns with 9 interceptions.[3]
Tennessee Valley Vipers (second stint)
He rejoined the Vipers in 2007 and completed 96 of 171 passes for 941 yards and 16 touchdowns with 9 interceptions.[3] He missed 7 games due to a dislocated elbow on his non-throwing arm. In November 2007, he re-signed with the Vipers for the 2008 season.[6]
He rejoined the Vipers for the third time later in 2008. After starter Kevin Eakin injured his ankle on the first drive of ArenaCup IX on August 25, 2008, Colston, who had only attemped four passes all season, entered the game as Eakin's replacement.[7] Colston then proceeded to
complete 20 of 30 passes for 288 yards and seven touchdowns with no interceptions while scoring the game-winning 2-point conversion on a rushing attempt in overtime to defeat Nick Davila and the Spokane Shock by a score of 56–55.[7][8] He was named the Schutt Offensive Player of the game. In February 2009, the af2 announced that ArenaCup IX had been named the greatest game in league history by a group of current and former af2 head coaches, media members, and fans.[7]
In October 2008, he was re-assigned to the Vipers for the 2009 season.[9] The Vipers moved to the Arena Football League (AFL) in 2010 and were renamed the Alabama Vipers. After an injury to Kevin Eakin and poor play by backup Stephen Wasil, Colston made his first AFL start on May 22, 2010, throwing for 238 yards and five touchdowns while also rushing for a touchdown in a 56–19 victory over the Bossier–Shreveport Battle Wings.[10] Overall, he completed 65 of 118 passes for 817 yards and 14 touchdowns with 4 interceptions while also rushing for 3 scores during the 2010 season.[11] The Vipers folded after the 2010 season.
In October 2011, Colston signed with the Knoxville NightHawks of the Professional Indoor Football League (PIFL) for the 2012 season.[12] He completed 62 of 122 passes for 731 yards and 13 touchdowns with 10 interceptions in 5 games before being released on April 24.[13][14]
Georgia Force (first stint)
He was assigned to the Georgia Force of the AFL on May 10, 2012. He was reassigned on May 16, 2012.[15]
Alabama Hammers
He signed with the Alabama Hammers of the PIFL in May 2012 after Hammers rookie Arvell Nelson was benched.[13] However, Colston was also benched and replaced by Nelson after completing
38 of 78 passes for 357 yards, and 9 touchdowns with 3 interceptions in 2 starts, both losses.[16][17]
Georgia Force (second stint)
Colston was assigned to the Force again in June 2012 before being reassigned in July 2012.[15]
Personal life
Colston now runs a quarterback training program called The Gunslinger Academy.[18][19]