# 2021 GT America Series

The 2021 GT America Series was the inaugural season of the SRO Motorsports Group's GT America Series, an auto racing series for grand tourer cars. The races were contested with GT2-spec, GT3-spec and GT4-spec cars. The season began at Sonoma on March 6, and ended at Indianapolis on October 17.

## Calendar

The final calendar was released on October 26, 2020
| Round | Circuit | Date |
| 1 | Sonoma Raceway, Sonoma, California | March 6–7 |
| 2 | Circuit of the Americas, Elroy, Texas | May 1–2 |
| 3 | Virginia International Raceway, Alton, Virginia | June 5–6 |
| 4 | Nashville Street Circuit, Nashville, Tennessee | August 7–8 |
| 5 | Road America, Elkhart Lake, Wisconsin | August 28–29 |
| 6 | Watkins Glen International Watkins Glen, New York | September 18–19 |
| 7 | Sebring International Raceway Sebring, Florida | October 1–3 |
| 8 | Indianapolis Motor Speedway, Indianapolis, Indiana | October 17 |

## Entry list

| Team | Car | No. | Drivers | Class | Class | Rounds |
| Team | Car | No. | Drivers | Car | Driver | Rounds |
| Notlad Racing by RS1 | Aston Martin Vantage AMR GT4 | 00 | Matt Dalton | GT4 | GT | 1–3 |
| CrowdStrike/ DXDT Racing | Mercedes-AMG GT3 Evo | 04 | George Kurtz | GT3 | OV | 1–5, 8 |
| CrowdStrike/ DXDT Racing | Mercedes-AMG GT3 Evo | 58 | C.J. Moses | GT3 | OV | 2–6, 8 |
| CrowdStrike/ DXDT Racing | Mercedes-AMG GT3 Evo | 63 | David Askew | GT3 | OV | 4 |
| GMG Racing | Audi R8 LMS GT4 Evo | 07 | Jason Nolan | GT4 | GT | 2 |
| GMG Racing | Audi R8 LMS GT4 Evo | 8 | Elias Sabo | GT4 | GT | 1–2 |
| GMG Racing | Audi R8 LMS GT2 | 8 | Elias Sabo | GT2 | INV | 4, 7–8 |
| GMG Racing | Aston Martin Vantage AMR GT4 | 2 | Jason Bell | GT4 | GT | All |
| GMG Racing | Lamborghini Huracán GT3 Evo | 14 | James Sofronas | GT3 | OV | 2 |
| GMG Racing | Audi R8 LMS Ultra | 14 | James Sofronas | GT3 | OV | 4–5 |
| GMG Racing | Porsche 911 GT3 R | 32 | Kyle Washington | GT3 | OV | 1–5, 8 |
| Automatic Racing | Aston Martin Vantage AMR GT4 | 09 | Paul Kiebler | GT4 | GT | 5–7 |
| Dexter Racing | Ginetta G55 GT4 | 060 | Matt Rivard | GT4 | INV | 6 |
| Dexter Racing | Ginetta G56 GT4 | 60 | Matt Rivard | GT4 | GT | 7–8 |
| TR3 Racing | Lamborghini Huracán GT3 Evo | 10 | John Megrue | GT3 | OV | 5–7 |
| TR3 Racing | Lamborghini Huracán Super Trofeo Evo | 90 | Caesar Bacarella | INV | INV | 6 |
| Classic BMW | BMW M4 GT4 | 11 | Philip Bloom | GT4 | GT | 1–3 |
| Classic BMW | BMW M4 GT4 | 11 | Mark Brummond | GT4 | GT | 4 |
| Capstone Motorsports | Mercedes-AMG GT4 | 16 | John Allen | GT4 | GT | 5, 7 |
| TGR Forbush Performance | Toyota GR Supra GT4 | 18 | Matt Forbush | GT4 | GT | 4 |
| EMG Motorsport | Saleen 1 GT4 Cup | 21 | Zoey Edenholm | GT4 | INV | 3 |
| EMG Motorsport | Saleen 1 GT4 Cup | 112 | Dominic Starkweather | GT4 | INV | 3 |
| Heart Of Racing Team | Aston Martin Vantage AMR GT4 | 25 | Gray Newell | GT4 | GT | All |
| Prive Motorsports / Topp Racing | McLaren 570S GT4 | 26 | Thomas Surgent | GT4 | GT | 2–4, 6, 8 |
| Daskalos Motorsports | Audi R8 LMS | 27 | Jason Daskalos | GT3 | OV | 1–5, 7 |
| Rearden Racing | Lamborghini Huracán GT3 | 29 | Dmitri Novikov | GT3 | MT | 1 |
| Rearden Racing | Lamborghini Huracán GT3 Evo | 191 | Jeff Burton | GT3 | MT | All |
| Rearden Racing | Audi R8 LMS GT4 | 888 | Kris McCoy | GT4 | GT | 1 |
| RENNtech Motorsports | Mercedes-AMG GT4 | 39 | Chris Cagnazzi | GT4 | GT | 2–5, 7–8 |
| RENNtech Motorsports | Mercedes-AMG GT4 | 79 | Christopher Gumprecht | GT4 | GT | 3, 5–8 |
| RENNtech Motorsports | Mercedes-AMG GT4 | 89 | Ross Chouest | GT4 | GT | 1–5 |
| Wright Motorsports | Porsche 911 GT3 R | 45 | Charlie Luck | GT3 | MT | 1–6, 8 |
| Nolasport | Porsche Cayman GT4 Clubsport MR | 49 | Jason Hall | GT4 | GT | 1 |
| Nolasport | Porsche Cayman GT4 Clubsport MR | 49 | Scott Noble | GT4 | GT | 5–8 |
| 3R Povoledo Racing | Aston Martin Vantage AMR GT4 | 50 | Ross Chouest | GT4 | GT | 6–7 |
| Black Swan Racing | Porsche Cayman GT4 Clubsport MR | 54 | Tim Pappas | GT4 | GT | 1–3, 5, 7 |
| Scuderia Corsa | Ferrari 488 GT3 Evo 2020 | 62 | Bret Curtis | GT3 | OV | 4 |
| TRG - The Racer's Group | Porsche 718 Cayman GT4 Clubsport | 66 | Derek DeBoer | GT4 | GT | 4 |
| ST Racing | Porsche 718 Cayman GT4 Clubsport | 69 | Dan Miller | GT4 | GT | 1 |
| Inception Racing with Optimum Motorsport | McLaren 720S GT3 | 70 | Brendan Iribe | GT3 | OV | 2–5, 6, 8 |
| ROTR Motorsport | Audi R8 LMS GT4 Evo | 76 | Alex Welch | GT4 | GT | 1–6, 8 |
| Compass Racing | Acura NSX GT3 Evo | 77 | Rodrigo Sales | GT3 | OV | 7 |
| Zelus Motorsports | Lamborghini Huracán GT3 Evo | 88 | Jason Harward | GT3 | OV | All |
| Zelus Motorsports | Aston Martin Vantage AMR GT4 | 888 | Sean Whalen | GT4 | GT | 6, 8 |
| Random Vandals Racing | BMW M4 GT4 | 98 | Paul Sparta | GT4 | GT | 4 |
| Rotek Racing | Ford Mustang GT4 | 99 | Robb Holland | GT4 | GT | All |
| TKO Motorsports with Flying Lizard | Bentley Continental GT3 | 101 | Memo Gidley | GT3 | OV | 5, 7–8 |
| Stephen Cameron Racing | BMW M4 GT4 | 119 | Sean Quinlan | GT4 | GT | All |
| Stephen Cameron Racing | Porsche 718 Cayman GT4 Clubsport | 619 | Alain Stad | GT4 | GT | 2–3, 5–7 |
| Premier Sportscar | Porsche 718 Cayman GT4 Clubsport | 120 | Adam Adelson | GT4 | GT | 1–7 |
| TPC Racing | Lamborghini Huracán Super Trofeo GT2 | 381 | Scott Schmidt | GT2 | INV | 2 |
| Flying Lizard Motorsports | Porsche 911 GT3 R (2017) | 460 | Andy Wilzoch | GT3 | MT | 2, 5–8 |
| CarBahn Motorsports with Peregrine Racing | Audi R8 LMS GT4 Evo | 930 | Sameer Ghandi | GT4 | GT | 7 |
| RecStuff Racing | Mercedes-AMG GT4 | 999 | Jeff Courtney | GT4 | GT | 2 |
| Icon | Class |
| Car ||
| GT2 | GT2 Cars |
| GT3 | GT3 Current-Gen Cars |
| GT3 | GT3 Previous-Gen Cars |
| GT4 | GT4 Cars |
| Drivers ||
| OV | Overall |
| MT | Masters |
| GT | GT4 |
| INV | Invitational |

## Race results

Bold indicates overall winner.
| Round | Round | Circuit | Pole position | Overall Winners | Masters Winners | GT2 Winners | GT4 Winners | Invitational Winners |
| 1 | R1 | Sonoma | No. 04 CrowdStrike / DXDT Racing | No. 04 CrowdStrike / DXDT Racing | No. 45 Wright Motorsports | No Entries | No. 119 Stephen Cameron Racing | No Entries |
| 1 | R1 | Sonoma | George Kurtz | George Kurtz | Charlie Luck | No Entries | Sean Quinlan | No Entries |
| 1 | R2 | Sonoma | | No. 04 CrowdStrike / DXDT Racing | No. 45 Wright Motorsports | No Entries | No. 99 Rotek Racing | No Entries |
| 1 | R2 | Sonoma | | George Kurtz | Charlie Luck | No Entries | Robb Holland | No Entries |
| 2 | R1 | Austin | No. 14 GMG Racing | No. 14 GMG Racing | No. 460 Flying Lizard Motorsports | No Entries | No. 89 RENNtech Motorsports | No. 381 TPC Racing |
| 2 | R1 | Austin | James Sofronas | James Sofronas | Andy Wilzoch | No Entries | Ross Chouest | Scott Schmidt |
| 2 | R2 | Austin | | No. 70 Inception Racing with Optimum Motorsport | No. 45 Wright Motorsports | No Entries | No. 119 Stephen Cameron Racing | No. 381 TPC Racing |
| 2 | R2 | Austin | | Brendan Iribe | Charlie Luck | No Entries | Sean Quinlan | Scott Schmidt |
| 3 | R1 | Virginia | No. 45 Wright Motorsports | No. 45 Wright Motorsports | No. 45 Wright Motorsports | No Entries | No. 119 Stephen Cameron Racing | No. 21 EMG Motorsport |
| 3 | R1 | Virginia | Charlie Luck | Charlie Luck | Charlie Luck | No Entries | Sean Quinlan | Zoey Edenholm |
| 3 | R2 | Virginia | | No. 70 Inception Racing with Optimum Motorsport | No. 45 Wright Motorsports | No Entries | No. 119 Stephen Cameron Racing | No. 112 EMG Motorsport |
| 3 | R2 | Virginia | | Brendan Iribe | Charlie Luck | No Entries | Sean Quinlan | Dominic Starkweather |
| 4 | R1 | Nashville | No. 14 GMG Racing | No. 14 GMG Racing | No. 191 Rearden Racing | No. 8 GMG Racing | No. 76 ROTR Motorsport | No Entries |
| 4 | R1 | Nashville | James Sofronas | James Sofronas | Jeff Burton | Elias Sabo | Alex Welch | No Entries |
| 4 | R2 | Nashville | | No. 62 Scuderia Corsa | No. 191 Rearden Racing | No Finishers | No. 39 RENNtech Motorsports | No Entries |
| 4 | R2 | Nashville | | Bret Curtis | Jeff Burton | No Finishers | Chris Cagnazzi | No Entries |
| 5 | R1 | Road America | No. 14 GMG Racing | No. 14 GMG Racing | No. 45 Wright Motorsports | No Entries | No. 119 Stephen Cameron Racing | No Entries |
| 5 | R1 | Road America | James Sofronas | James Sofronas | Charlie Luck | No Entries | Sean Quinlan | No Entries |
| 5 | R2 | Road America | | No. 460 Flying Lizard Motorsports | No. 460 Flying Lizard Motorsports | No Entries | No. 119 Stephen Cameron Racing | No Entries |
| 5 | R2 | Road America | | Andy Wilzoch | Andy Wilzoch | No Entries | Sean Quinlan | No Entries |
| 6 | R1 | Watkins Glen | No. 45 Wright Motorsports | No. 45 Wright Motorsports | No. 45 Wright Motorsports | No Entries | No. 2 GMG Racing | No. 90 TR3 Racing |
| 6 | R1 | Watkins Glen | Charlie Luck | Charlie Luck | Charlie Luck | No Entries | Jason Bell | Caesar Bacarella |
| 6 | R2 | Watkins Glen | | No. 191 Rearden Racing | No. 191 Rearden Racing | No Entries | No. 2 GMG Racing | No. 90 TR3 Racing |
| 6 | R2 | Watkins Glen | | Jeff Burton | Jeff Burton | No Entries | Jason Bell | Caesar Bacarella |
| 7 | R1 | Sebring | No. 101 TKO Motorsports with Flying Lizard | No. 101 TKO Motorsports with Flying Lizard | No. 460 Flying Lizard Motorsports | No. 8 GMG Racing | No. 119 Stephen Cameron Racing | |
| 7 | R1 | Sebring | Memo Gidley | Memo Gidley | Andy Wilzoch | Elias Sabo | Sean Quinlan | |
| 7 | R2 | Sebring | | No. 101 TKO Motorsports with Flying Lizard | No. 460 Flying Lizard Motorsports | No. 8 GMG Racing | No. 2 GMG Racing | |
| 7 | R2 | Sebring | | Memo Gidley | Andy Wilzoch | Elias Sabo | Jason Bell | |
| 8 | R1 | Indianapolis | No. 70 Inception Racing | No. 70 Inception Racing | No. 45 Wright Motorsports | No. 8 GMG Racing | No. 2 GMG Racing | |
| 8 | R1 | Indianapolis | Brendan Iribe | Brendan Iribe | Charlie Luck | Elias Sabo | Jason Bell | |
| 8 | R2 | Indianapolis | | No. 70 Inception Racing | No. 45 Wright Motorsports | No. 8 GMG Racing | No. 35 Heart of Racing Team | |
| 8 | R2 | Indianapolis | | Brendan Iribe | Charlie Luck | Elias Sabo | Gray Newell | |

## Championship standings
### Scoring system

Championship points are awarded for the first ten positions in each race. Entries are required to complete 75% of the winning car's race distance in order to be classified and earn points.
| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th |
| Points | 25 | 18 | 15 | 12 | 10 | 8 | 6 | 4 | 2 | 1 |

### Drivers' championships
#### GT3

| Pos. | Driver | | Team | SON | SON | AUS | AUS | VIR | VIR | NSH | NSH | ELK | ELK | WGL | WGL | SEB | SEB | IND | IND | Points |
| 1 | Charlie Luck | MT | Wright Motorsports | 2 | 2 | 7 | 3 | 1 | 2 | 3 | 7 | 3 | Ret | 1 | 4 | | | 2 | 3 | 209 |
| 2 | Jeff Burton | MT | Rearden Racing | 5 | 18 | 18 | 7 | 3 | 3 | 2 | 3 | 6 | 2 | 2 | 1 | | | 6 | 5 | 176 |
| 3 | Jason Harward | | Zelus Motorsports | 3 | 3 | 2 | 8 | 17 | 5 | 6 | 6 | 5 | Ret | 3 | 3 | | | 4 | 9 | 143 |
| 4 | Brendan Iribe | | Inception Racing with Optimum Motorsport | | | 4 | 1 | 2 | 1 | | | | | | | | | 1 | 1 | 130 |
| 5 | James Sofronas | | GMG Racing | | | 1 | 2 | | | 1 | 5 | 1 | 6 | | | | | | | 111 |
| 6 | Kyle Washington | | GMG Racing | 4 | 6 | 5 | 6 | 4 | 15 | Ret | 19 | 7 | 3 | | | | | 3 | 4 | 107 |
| 7 | Andy Wilzoch | MT | Flying Lizard Motorsports | | | 6 | 5 | | | | | 4 | 1 | 4 | 5 | | | 5 | 6 | 97 |
| 8 | George Kurtz | | CrowdStrike / DXDT Racing | 1 | 1 | Ret | 4 | 7 | Ret | 7 | 4 | WD | WD | | | | | | | 90 |
| 9 | Jason Daskalos | | Daskalos Motorsports | Ret | 4 | 3 | Ret | 15 | Ret | 4 | 2 | 8 | 4 | | | | | | | 79 |
| 10 | CJ Moses | | CrowdStrike / DXDT Racing | DNS | DNS | DNS | 9 | 5 | 4 | 8 | 8 | | | | | | | 8 | 8 | 46 |
| 11 | Memo Gidley | | TKO Motorsports with Flying Lizard | | | | | | | | | 2 | Ret | | | | | 9 | 2 | 40 |
| 12 | Bret Curtis | | Scuderia Corsa | | | | | | | 19 | 1 | | | | | | | | | 29 |
| 13 | Dmitri Novikov | MT | Rearden Racing | 12 | 5 | | | | | | | | | | | | | | | 18 |
| 14 | John Megrue | MT | TR3 Racing | | | | | | | | | DNS | 6 | DNS | DNS | | | | | 10 |
| 15 | David Askew | MT | CrowdStrike / DXDT Racing | | | | | | | Ret | 9 | | | | | | | | | 2 |
| Pos. | Driver | | Team | SON | SON | AUS | AUS | VIR | VIR | NSH | NSH | ELK | ELK | WGL | WGL | SEB | SEB | IND | IND | Points |

#### GT2

| Pos. | Driver | Team | SON | SON | AUS | AUS | VIR | VIR | NSH | NSH | ELK | ELK | WGL | WGL | SEB | SEB | IND | IND | Points |
| 1 | Elias Sabo | GMG Racing | | | | | | | 5 | Ret | | | | | | | 7 | 7 | 75 |
| Pos. | Driver | Team | SON | SON | AUS | AUS | VIR | VIR | NSH | NSH | ELK | ELK | WGL | WGL | SEB | SEB | IND | IND | Points |

#### GT4

| Pos. | Driver | Team | SON | SON | AUS | AUS | VIR | VIR | NSH | NSH | ELK | ELK | WGL | WGL | SEB | SEB | IND | IND | Points |
| 1 | Jason Bell | GMG Racing | 8 | 10 | 9 | 13 | 8 | 10 | 15 | 14 | 11 | 7 | 5 | 6 | | | 10 | 11 | 230 |
| 2 | Sean Quinlan | Stephen Cameron Racing | 6 | 9 | 20 | 11 | 6 | 6 | 9 | 13 | 9 | 5 | NC | 10 | | | 12 | Ret | 217 |
| 3 | Robb Holland | Rotek Racing | 7 | 7 | 11 | 15 | 12 | 12 | 10 | 12 | 13 | 9 | 10 | 13 | | | 14 | 17 | 162 |
| 4 | Alex Welch | ROTR Motorsport | 17 | 14 | 16 | 16 | 10 | 7 | 9 | 11 | 14 | 10 | 11 | 9 | | | 17 | 12 | 146 |
| 5 | Gray Newell | Heart of Racing Team | 16 | 15 | 14 | 14 | 13 | 11 | 18 | 18 | 15 | Ret | 6 | Ret | | | 11 | 10 | 105 |
| 6 | Chris Cagnazzi | RENNtech Motorsports | | | 10 | DNS | 9 | 8 | 13 | 10 | 10 | Ret | | | | | 16 | Ret | 104 |
| 7 | Ross Chouest | RENNtech Motorsports | 15 | 17 | 8 | 12 | 11 | 9 | DNS | DNS | 17 | Ret | 8 | 7 | | | | | 102 |
| 8 | Scott Noble | Nolasport | | | | | | | | | 12 | 8 | | | | | 13 | 13 | 51 |
| 9 | Christopher Gumprecht | RENNtech Motorsports | | | | | DNS | DNS | | | 18 | 11 | 9 | 8 | | | 15 | 16 | 50 |
| 10 | Adam Adelson | Premier Sportscar | 9 | 11 | 13 | Ret | Ret | DNS | 14 | 15 | 19 | 13 | | | | | | | 50 |
| 11 | Alain Stad | Stephen Cameron Racing | | | 19 | 17 | 14 | 13 | | | 16 | 12 | 14 | 12 | | | | | 33 |
| 12 | Phil Bloom | Classic BMW | 10 | 8 | DNS | DNS | | | | | | | | | | | | | 28 |
| 13 | Elias Sabo | GMG Racing | 11 | 13 | 17 | 18 | | | | | | | | | | | | | 20 |
| 14 | Tim Pappas | Black Swan Racing | Ret | 12 | 12 | DNS | DNS | Ret | | | DNS | DNS | | | | | | | 18 |
| 15 | Thomas Surgent | Prive Motorsports / Topp Racing | | | 21 | DNS | | | 17 | 21 | | | 12 | 11 | | | 20 | 18 | 18 |
| 16 | Sean Whalen | Zelus Motorsports | | | | | | | | | | | 13 | 15 | | | 18 | 15 | 15 |
| 17 | Mark Brummond | Classic BMW | | | | | | | 12 | 20 | | | | | | | | | 13 |
| 18 | Matt Rivard | Dexter Racing | | | | | | | | | | | | | | | 19 | 14 | 11 |
| 19 | Matt Forbush | TGR Forbush Performance | | | | | | | 16 | 16 | | | | | | | | | 10 |
| 20 | Matt Dalton | Notlad Racing by RS1 | 13 | 16 | DNS | Ret | Ret | DNS | | | | | | | | | | | 7 |
| 21 | Dan Miller | ST Racing | 14 | 19 | | | | | | | | | | | | | | | 4 |
| 21 | Derek DeBoer | The Racer's Group | | | | | | | Ret | 17 | | | | | | | | | 4 |
| 23 | Paul Kiebler | Automatic Racing | | | | | | | | | NC | 14 | DNS | 14 | | | | | 4 |
| 24 | Jason Nolan | GMG Racing | | | DNS | 19 | | | | | | | | | | | | | 2 |
| | Jeff Courtney | RecStuff Racing | | | DNS | DNS | | | | | | | | | | | | | 0 |
| | Jason Hall | Nolasport | DNS | DNS | | | | | | | | | | | | | | | 0 |
| | John Allen | Capstone Motorsports | | | | | | | | | DNS | | | | | | | | 0 |
| Pos. | Driver | Team | SON | SON | AUS | AUS | VIR | VIR | NSH | NSH | ELK | ELK | WGL | WGL | SEB | SEB | IND | IND | Points |
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.
1 2 3 4 5 6 7 8 9 10 11 12 13 Lloyd, Daniel (February 26, 2021). "Winward, Turner Listed in Pro Class for Sonoma Opener". sportscar365.com. John Dagys Media. Retrieved February 26, 2021.
1 2 Dagys, John (February 3, 2021). "Cooper, Vogel Join DXDT in Expanded Three-Car GT3 Effort". sportscar365. John Dagys Media. Retrieved February 3, 2021.
1 2 3 4 5 6 7 8 9 10 11 12 Dagys, John (February 10, 2021). "14 Entries for Sonoma Opener; Nearly 100 Cars for Event". sportscar365.com. John Dagys Media. Retrieved February 10, 2021.
1 2 3 4 5 6 7 8 9 10 11 12 "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.
1 2 3 Dagys, John (January 26, 2021). "GMG Confirms Multi-Car SRO America Program". sportscar365. John Dagys Media. Retrieved January 26, 2021.
1 2 3 4 5 6 7 8 9 10 11 12 "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.
1 2 Dagys, John (April 30, 2021). "Sofronas Debuts Ex-FFF Lamborghini Huracan GT3 Evo". sportscar365. John Dagys Media. Retrieved April 30, 2021.
1 2 3 4 5 6 7 "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.
1 2 3 4 5 "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.
1 2 3 4 5 "Sebring Invitational Set for Sprint Showdown in the South". gtamerica.us. SRO Motorsports Group. September 24, 2021. Retrieved September 24, 2021.
1 2 3 4 "GT Sprint Racing Celebrates Return to VIRginia International Raceway". gtamerica.us. SRO Motorsports Group. May 28, 2021. Retrieved May 29, 2021.
1 2 3 4 Myrehn, Ryan (February 17, 2021). "Rearden Steps Up to GT3 With Lamborghini Entries". sportscar365.com. John Dagys Media. Retrieved February 17, 2021.
1 2 Dagys, John (February 23, 2021). "Wright Expands into Two-Car Porsche GT3 Effort". sportscar365.com. John Dagys Media. Retrieved February 23, 2021.
1 2 3 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.
1 2 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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