The only race of the season at Sonoma Raceway for the San Francisco region. The 12 turn 2.52 mile (4.06 km) circuit with plenty of elevation change only provides a single weekend and few opportunities for the SCCA SFR racers to do it right and bring home the points.
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Earlier Event: May 12Thunderhill - SCCA SFR Double Regional Races 3 & 4
Later Event: October 20Thunderhill - SCCA SFR Season Finale Races 13 & 14