Photos and story provided by David Grube Contact Photographer for Information.

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Pirelli World Challenge Sonoma Raceway 2015

Over 60 drivers across four of Pirelli World Challenge's seven classes competed at Sonoma Raceway, August 28 to 30 at the Grand Prix of Sonoma presented by KIA in its 17th appearance at Sonoma Raceway. New in 2015, the inaugural season for GT Cup, making this is the first time competing at Sonoma.

GTS
1. Michael Cooper/Syosset/NY Blackdog Speed Shop/Chevrolet Z28
2. Kris Wilson/Monument/CO RoyalPurple/Orion/LaSalle/Pass/Aston Martin Vantage GT4
3. Andrew Aquilante/Chester Springs/PA Calvert Dynamics/PhoenixPerf/Ford Mustang Boss 302
4. Jack Baldwin/Marietta/GA GTSport Racing/Porsche Cayman S
5. Nathan Stacy/Owasso/OK Rehagen Racing/Ford Mustang Boss302

GT
1. Renger van der Zande/Nijmegen Netherlands/ EFFORT Racing/World PMO/Porsche 911 GT3R
2. Kevin Estre/Lochau Austria K-PAX Racing/McLaren 650S GT3
3. Olivier Beretta/Monte Carlo FerrariOntario/Toronto/Alberta/Ferrari 458 GT3
4. Robert Thorne/Littleton/CO K-PAX Racing/McLaren 650S GT3
5. Andy Pilgrim/Boca Raton/FL Cadillac Racing/Cadillac ATS-VR GT3

GTC
1. Colin Thompson/Doylestown/PA PorscheBucksCounty/PennValley/Porsche 911 GT3 CUP
2. Alec Udell/The Woodlands/TX AmsourceCapital/PantherPipelin/Porsche 911 GT3 CUP
3. Sloan Urry/Salt Lake City/UT SecurityNational/Engel&Volkers/Porsche 911 GT3 CUP
4. Lorenzo Trefethen(R)/Napa/CA Trefethen Family Vineyards/Porsche 911 GT3 CUP
5. Victor Gomez(R)/San Juan/PR Porsche San Juan/Porsche 911 GT3 CUP

GTA
1. Frank Montecalvo/Highlands/NJ Bayshore Racing/Mercedes Benz AMG SLS GT3
2. Eric Lux/Buffalo/NY Rembrandt Charms/Monticello MC/Mercedes Benz AMG SLS GT3
3. Martin Fuentes/Mexico City/MX ScuderiaCorsa/Hublot/Samsung/Ferrari 458 GT3 Italia
4. Henrique Cisneros/Miami/FL MOMO/Ferrari 458 GT3 Italia
5. Christina Nielsen(R)/Aarhus Denmark/ RoyalPurple/Orion/LaSalle/Pass/Aston Martin Vantage GT3

GT-A class.
Martin Fuentes steered the no. 07 Scuderia Corsa / HUBLOT Ferrari 458 Italia to his third place, his sixth podium finish of the season for Scuderia Corsa's team in its first Pirelli World Challenge season at Sonoma Raceway in Sonoma, California.

In fourth position in the GT-A class was Mike Hedlund, in the no. 65 Scuderia Corsa Ferrari 458 Italia.

Colin Thompson/Doylestown/PA Porsche Bucks County/PennValley/Porsche 911 GT3 CUP GTC 1 Place

Robert Thorne/Littleton/CO K-PAX Racing/McLaren 650S GT3 GT 4th

Bill Ziegler/Ponte Vedra/FL Swisher Racing/BMW E89 Z4 GT3 GT 16th

Henrique Cisneros/Miami/FL MOMO/Ferrari 458 GT3 Italia GT 13th

Drew Regitz/Denver/CO WWW.IRACERCOACHING.COM/Audi R8 LMS Ultra GT 15th

Mitch Landry/Lake Charles/LA Deep South/VersaCrane/Porsche 911 GT3 CUP GTC 6th

Eduardo Cisneros(R)/Miami/FL MOMO/Ferrari 458 GT3 Italia GT 18th

Renger van der Zande/Nijmegen Netherlands/ EFFORT Racing/World PMO/Porsche 911 GT3R GT 1st

Henrik Hedman/Ft Lauderdale/FL DragonSpeed/MercedesBenzAMG SLS GT3 GT 20th