The 12th and final International Hot Rod Association (IHRA) Nitro Jam Drag Racing Series race of the season took place at Memphis International Raceway. The Summit Racing Equipment World Finals featuring Nitro Jam set the stage to crown four Nitro Jam World Champions in AMSOIL Nitro Funny Car presented by Aeromotive, Nitro Harley, Pro Stock and Crower Pro Modified.
The three-day event proved to be one of the most unpredictable and exciting Nitro Jam events of the season. Fans and teams overcame weather and produced the best professional and sportsman racing action in the country. Two world records were set, two drivers claimed back-to-back championships and the return of the Crower Pro Mod class gave way to a brand new IHRA champion.
Jay Turner returned to championship status and is now a four-time IHRA Nitro Harley World Champion. Turner and Tracy Kile battled it out heading into Memphis for the top spot. Kile did not advance to the semifinals allowing Turner to secure the championship in the first round of eliminations. Turner went on to win the World Finals and claim his fifth win of the 2015 season. In addition, the 2015 World Champion broke the Nitro Harley ET world record on his final pass.