Sonoma, CA | Round 2 of the Porsche Sprint Challenge USA West visits Sonoma Raceway this weekend. Sonoma features 2.52 miles of evaluation changing racing over 12 turns. This weekend showcases 11 entries representing 5 different USA West teams. Both Races from Sonoma will be livestream on the Porsche Sprint Race Control. Practice 1 and 2 were held today under perfect conditions with dominant performances from Chris Bellomo from the GT3 Cup 992 class, Paul Nemschoff in the GT3 Cup 991 class, and Cayman class point leader Michael Gaulke.