2019 Circuit of the Americas
Entry list
| Car # | Driver 1 | Team | Car | Class |
|---|---|---|---|---|
| 2 | Jason Bell | GMG Racing | Audi R8 LMS GT4 | GT4 SprintX - Pro/Am |
| 19 | Sean Quinlan | Stephen Cameron Racing | BMW M4 GT4 | GT4 SprintX - Pro/Am |
| 21 | Michael Dinan | Flying Lizard Motorsports | Porsche 718 Cayman CS MR | GT4 SprintX - Pro/Am |
| 47 | Matt Travis | NOLASPORT | Porsche 718 Cayman CS MR | GT4 SprintX - Pro/Am |
| 16 | John Allen | Auto Technic Racing | BMW M4 GT4 | GT4 SprintX - Am |
| 35 | Seth Neiman | Flying Lizard Motorsports | Porsche 718 Cayman CS MR | GT4 SprintX - Am |
| 36 | Jarett Andretti | Andretti Autosport | McLaren 570S GT4 | GT4 SprintX - Am |
| 46 | Mike Vess | NOLASPORT | Porsche 718 Cayman CS MR | GT4 SprintX - Am |
| 51 | Preston Calvert | Team Panoz Racing | Panoz Avezzano GT | GT4 SprintX - Am |
| 69 | Thomas Collingwood | BGB Motorsports Group | Porsche Cayman GT4 CS-MR | GT4 SprintX - Am |
| 22 | Marko Radisic | Precision Driving Tech | BMW M4 GT4 | GT4 East - Pro/Am |
| 27 | Anthony Geraci | KRUGSPEED | Ginetta G55 | GT4 East - Pro/Am |
| 29 | Justin Raphael | Classic BMW | BMW M4 GT4 | GT4 East - Pro/Am |
| 32 | Stuart Briscoe | Kelly-Moss Road & Race | Porsche Cayman GT4 CS-MR | GT4 East - Pro/Am |
| 33 | Andy Pilgrim | Doghouse Performance | Audi R8 LMS GT4 | GT4 East - Pro/Am |
| 55 | Rich Golinello | Kohr Motorsports | Ford Mustang GT4 | GT4 East - Pro/Am |
| 77 | Alan Brynjolfsson | Park Place Motorsports | Porsche 718 Cayman CS MR | GT4 East - Pro/Am |
| 80 | Aurora Strauss | Rearden Racing | BMW M4 GT4 | GT4 East - Pro/Am |
| 89 | Reinhold Renger | RENNtech Motorsports | Mercedes-AMG GT4 | GT4 East - Pro/Am |
| 92 | Chris Ohmacht | Classic BMW | BMW M4 GT4 | GT4 East - Pro/Am |
| 3 | James Clay | Epic Motorsports | BMW M4 GT4 | GT4 East - Am |
| 31 | Sean Gibbons | Bodymotion Racing | Porsche 718 Cayman CS MR | GT4 East - Am |
| 34 | Matthew Fassnacht | Murillo Racing | Mercedes-AMG GT4 | GT4 East - Am |
| 44 | Eric Palmer | Kelly-Moss/Photon Motorsports | Audi R8 LMS GT4 | GT4 East - Am |
| 254 | Ray Mason | Classic BMW | BMW M4 GT4 | GT4 East - Am |
| 5 | Casey Dennis | USRD | Ginetta G55 | GT4 West - Pro/Am |
| 24 | Frank Gannett | Ian Lacy Racing | Ginetta G55 | GT4 West - Pro/Am |
| 28 | Harry Gottsacker | ST Racing | BMW M4 GT4 | GT4 West - Pro/Am |
| 38 | Samantha Tan | ST Racing | BMW M4 GT4 | GT4 West - Pro/Am |
| 43 | Sarah Cattaneo | Rearden Racing | Audi R8 LMS GT4 | GT4 West - Pro/Am |
| 17 | James Rappaport | TRG- The Racers Group | Porsche 718 Cayman CS MR | GT4 West - Am |
| 67 | Kevin Woods | TRG- The Racers Group | Porsche 718 Cayman CS MR | GT4 West - Am |