Grudge matches own the night at Thursday's Roadrunner Market Street Fights hosted by Great Clips as street legal rides vie for free haircuts and the title of fastest ride in Thunder Valley.

One racing pair, randomly chosen from e-mail and Facebook entries, square off in a best two-out-of-three grudge match ending with a year's worth of free haircuts for the winner and a shaved head for the loser.

Racers are encouraged to challenge their friends or rivals to the Great Clips Grudge Match by sending information about their pairing via e-mail to Kyle Rodriguez or through a direct message to Bristol Dragway's Facebook page. Dragway officials will select participants by random draw at Thursday's event.

Power Hour also highlights the May 29 event as the night's eight fastest rides go head-to-head, earning the winners a trophy signifying their speed on the quarter-mile strip.

Dragway officials tally the points of all Power Hour participants with the year's fastest rides taking home a Championship jacket and trophy.

Prior to eliminations, two qualifying rounds set the ladder of eight cars. The ninth and tenth qualifiers are placed on standby in the event any of the qualified entries are unable to make the first round.

The Roadrunner Reaction Time Contest returns to Bristol Dragway, awarding a $25 gift card good for fuel or merchandise at any Roadrunner Markets Shell location to the driver with the night's best reaction time.

In addition to racers, spectators are able to win Roadrunner Markets gift cards and other prizes through participation in games taking place during the event.

Gates open Thursday at 5 p.m. with racing starting at 6 p.m. Cost to participate is $10 for racers, $15 for trailered cars and $5 for spectators. Anyone who purchased tickets for the Saturday, March 29 Street Fights may show their ticket at the gate to receive free admission to one additional 2014 Street Fights event.

For a complete Roadrunner Markets Street Fights schedule or for more information on events at Bristol Dragway, visit www.BristolDragway.com. For more information on how to receive great deals from Roadrunner Markets or to find a location near you, visit www.RoadrunnerMarkets.com.