MEET Roi Holster

Roi Holster started NapaValleyRacing to promote Napa Valley for its beauty, wine, culture and its businesses. A local resident he grew up on motorcycles racing motocross and arenacross for most of his life. The year 2010 was his pro debut in Supersport where he moved up the ranks with a top ten finish and to earn a 7th place overall Supersport West in 2011. Stepping up to Daytona Sport Bike, where he soon earned his Superbike license in 2016, he now competes in the televised MotoAmerica National Road Racing Series with the fastest racers in the nation.

The 2019 race schedule click here! 




NAPA VALLEY RACING INFO was established to promote Napa Valley in the invigorating high adrenaline sport of road racing! Competing in the televised MotoAmerica National Road Racing Series sanctioned by the AMA and FIM north america.

The primary goal of MotoAmerica is to reinvigorate motorcycle racing in North America, reintroducing the most exhilarating motorsport in history to fans while grooming a new generation of American and international racers for the world stage. MotoAmerica works with tracks, teams, sponsors, OEMs and promoters, telling the stories of the racers, the engineers and the dreamers who strive to go further and faster. MotoAmerica creates heroes by telling the racers’ stories, building a fanbase for motorcycle road racing in America while integrating sponsor and manufacturer messages organically.



PO Box 11063
Napa, CA 94581

Drop us a line by phone or email.

P: (707) 483-9253