Calvin Stewart, of Novi, Mich., won the SCCA Formula 500 National Championship as part of the Runoffs Presented by Garmin VIRB, in a study of two drivers having the advantage at different parts of the Daytona International Speedway circuit. Matthew Strand, of Covington, Ga., took home a hard-fought second place,...

Calvin Stewart, of Novi, Mich., won the SCCA Formula 500 National Championship as part of the Runoffs Presented by Garmin VIRB, in a study of two drivers having the advantage at different parts of the Daytona International Speedway circuit. Matthew Strand, of Covington, Ga., took home a hard-fought second place,...

Follow all the live timing and scoring and get results at www.scca.com/runoffs. Live Twitter stream is available @SCCALive. Follow this weekend's races on Facebook at www.facebook.com/SCCAOfficial. The live broadcast of all 28 National Championship races will be available through Sunday at www.SpeedcastTV.com/scca and later available On Demand from the same...