References - ^ Dagys, John (October 26, 2020). "COTA Date Set; 2021 SRO America Calendars Confirmed". sportscar365.com. John Dagys Media. Retrieved January 9, 2021.
- ^ Daniel, Lloyd (October 2, 2020). "GT4 Sprint, GTSC Absorbed into New GT America Series". sportscar365.com. John Dagys Media. Retrieved February 3, 2021.
- ^ a b c d e f g h i j k l m Lloyd, Daniel (February 26, 2021). "Winward, Turner Listed in Pro Class for Sonoma Opener". sportscar365.com. John Dagys Media. Retrieved February 26, 2021.
- ^ a b Dagys, John (February 3, 2021). "Cooper, Vogel Join DXDT in Expanded Three-Car GT3 Effort". sportscar365. John Dagys Media. Retrieved February 3, 2021.
- ^ a b c d e f g h i j k l Dagys, John (February 10, 2021). "14 Entries for Sonoma Opener; Nearly 100 Cars for Event". sportscar365.com. John Dagys Media. Retrieved February 10, 2021.
- ^ a b c d e f g h i j k l "The Sounds of GT Race Cars Ready to Roar on the Streets of Nashville". gtamerica.us. SRO Motorsports Group. July 30, 2021. Retrieved July 30, 2021.
- ^ a b c Dagys, John (January 26, 2021). "GMG Confirms Multi-Car SRO America Program". sportscar365. John Dagys Media. Retrieved January 26, 2021.
- ^ a b c d e f g h i j k l "Growing GT America powered by AWS Grid Set for Circuit of the Americas". SRO Motorsports Group. April 23, 2021. Retrieved April 23, 2021.
- ^ Dagys, John (December 14, 2020). "GMG Confirms Multi-Car SRO America Program". sportscar365. John Dagys Media. Retrieved December 14, 2020.
- ^ a b Dagys, John (April 30, 2021). "Sofronas Debuts Ex-FFF Lamborghini Huracan GT3 Evo". sportscar365. John Dagys Media. Retrieved April 30, 2021.
- ^ a b c d e f g "From Music City to the National Park of Speed, GT Sprint Racing Returns to Road America". gtamerica.us. SRO Motorsports Group. August 20, 2021. Retrieved August 20, 2021.
- ^ a b c d e "GT Sprint Racing Returns to Upstate New York for a Double-header at The Glen". gtamerica.us. SRO Motorsports Group. September 10, 2021. Retrieved September 10, 2021.
- ^ a b c d e "Sebring Invitational Set for Sprint Showdown in the South". gtamerica.us. SRO Motorsports Group. September 24, 2021. Retrieved September 24, 2021.
- ^ a b c d "GT Sprint Racing Celebrates Return to VIRginia International Raceway". gtamerica.us. SRO Motorsports Group. May 28, 2021. Retrieved May 29, 2021.
- ^ a b c d Myrehn, Ryan (February 17, 2021). "Rearden Steps Up to GT3 With Lamborghini Entries". sportscar365.com. John Dagys Media. Retrieved February 17, 2021.
- ^ a b Dagys, John (February 23, 2021). "Wright Expands into Two-Car Porsche GT3 Effort". sportscar365.com. John Dagys Media. Retrieved February 23, 2021.
- ^ a b c Lloyd, Daniel (April 23, 2021). "Optimum to Make Series Debut at COTA With McLaren 720S GT3". sportscar365.com. John Dagys Media. Retrieved April 23, 2021.
- ^ a b Dagys, John (February 23, 2021). "Zelus Motorsports to Debut With Lamborghini Featuring Snow". sportscar365.com. John Dagys Media. Retrieved February 23, 2021.
- ^ "GT America Championship Bids Come Down to the Wire at The Brickyard". gtamerica.us. SRO Motorsports Group. October 8, 2021. Retrieved October 8, 2021.
- ^ Dagys, John (August 11, 2021). "Gidley to Make Return in Flying Lizard-Run Bentley". sportscar365.com. John Dagys Media. Retrieved August 11, 2021.
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