Phillips, 46, had been serving his sentence at Northeast Correctional Complex in Mountain City.
According to the Tennessee Department of Corrections, he was released Monday at the expiration of his sentence.
On the night of Sept. 24, 2005, Courtney Beard and friend Cortney Hensley, both 17, were in a car that was idling at a red light on North Roan Street in Johnson City when it was struck from behind by a vehicle driven by Bradley Mullins, who was 18 at the time.
A jury determined Mullins and Phillips were racing but Phillips pulled out of the race before the crash.
Hensley, who had just been crowned David Crockett High School homecoming queen the night before, was trapped and died in the car. Beard, a student at Unicoi County High School, was pulled from the fiery wreck but was severely burned.
Phillips and Mullins were convicted in 2007 of vehicular homicide, reckless aggravated assault and felony reckless endangerment in the case.
Phillips appealed those convictions, but they were upheld by the Court of Criminal Appeals in 2010. Phillips was denied parole in 2011.
Mullins served about 2 ½ years for his part in the crash and was given early release in May 2010. He had been sentenced to five years.
Phillips was transferred to the Morgan County Correctional Complex in July 2011 and then to Northeast in November 2011.
He had been sentenced to serve six years in prison.
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