The 2026 Skip Barber Formula iRacing Series continues with the fourth event of the season on Thursday night, as another pair of 15-minute races are scheduled at Sonoma Raceway, on the “Cup Long” layout. After Hot Lap Qualifying via Time Attack from June 12th to June 14th, 20 drivers have qualified for their shot to contend for more than $500,000 in prizes and the opportunity to run in the real-world Skip Barber Formula Race Series.