IMSA Hour 1: Mazda leads Petit Le Mans
Hour 1 of 10 is down in the IMSA Petit Le Mans race at Road Atlanta with Harry Tincknell out front in the #55 Mazda.
Renger van der Zande has the #01 Ganassi Cadillac in 2nd.
Meanwhile the #3 Corvette driven by Antonio Garcia has taken the lead in GTLM with the sister #4 Corvette in 2nd..
Hour 1 Standings
| Pos | Pic | Current Driver | No./Car | Stops |
| 1 | 1 | Harry Tincknell | #55 Mazda DPiM | 2 |
| 2 | 2 | Renger van der Zande | #01 Cadillac DPiM | 1 |
| 3 | 3 | Felipe Nasr | #31 Cadillac DPiM | 1 |
| 4 | 4 | Filipe Albuquerque | #10 Acura DPiM | 1 |
| 5 | 5 | Kamui Kobayashi | #48 Cadillac DPiM | 1 |
| 6 | 6 | Sebastien Bourdais | #5 Cadillac DPiM | 1 |
| 7 | 7 | Dane Cameron | #60 Acura DPiM | 1 |
| 8 | 1 | Ben Keating | #52 ORECA LMP2 07M | 1 |
| 9 | 2 | Steven Thomas | #11 ORECA LMP2 07M | 1 |
| 10 | 3 | James McGuire | #22 ORECA LMP2 07M | 1 |
| 11 | 4 | John Farano | #8 ORECA LMP2 07M | 2 |
| 12 | 1 | Niklas Kruetten | #2 Ligier JS P320M | 1 |
| 13 | 1 | Antonio Garcia | #3 Chevrolet Corvette C8.RM | 1 |
| 14 | 2 | Nick Tandy | #4 Chevrolet Corvette C8.RM | 1 |
| 15 | 2 | Naveen Rao | #83 Duqueine D08M | 1 |
| 16 | 3 | Gar Robinson | #74 Ligier JS P320M | 1 |
| 17 | 3 | Jesse Krohn | #24 BMW M8 GTEM | 1 |
| 18 | 4 | Dan Goldburg | #38 Ligier JS P320M | 1 |
| 19 | 4 | Fred Makowiecki | #97 Porsche 911 RSR – 19M | 1 |
| 20 | 5 | Jarett Andretti | #36 Ligier JS P320M | 1 |
| 21 | 5 | Connor De Phillippi | #25 BMW M8 GTEM | 1 |
| 22 | 6 | Jim Cox | #91 Ligier JS P320M | 1 |
| 23 | 7 | Jonathan Bennett | #54 Ligier JS P320M | 1 |
| 24 | 6 | Cooper MacNeil | #79 Porsche 911 RSR – 19M | 1 |
| 25 | 8 | Mark Kvamme | #7 Duqueine D08M | 1 |
| 26 | 9 | Ari Balogh | #30 Ligier JS P320M | 1 |
| 27 | 10 | Todd Archer | #40 Duqueine D08M | 2 |
| 28 | 1 | Robby Foley | #96 BMW M6 GT3M | 1 |
| 29 | 2 | Madison Snow | #1 Lamborghini Huracan GT3M | 1 |
| 30 | 3 | Kyle Kirkwood | #14 Lexus RC F GT3M | 1 |
| 31 | 4 | Frankie Montecalvo | #12 Lexus RC F GT3M | 1 |
| 32 | 5 | Michael de Quesada | #28 Mercedes-AMG GT3M | 1 |
| 33 | 6 | Lars Kern | #9 Porsche 911 GT3RM | 1 |
| 34 | 7 | Russell Ward | #57 Mercedes-AMG GT3M | 1 |
| 35 | 8 | Brendan Iribe | #70 McLaren 720S GT3M | 1 |
| 36 | 9 | Guy Cosmo | #32 Mercedes-AMG GT3M | 1 |
| 37 | 10 | Ian James | #23 Aston Martin Vantage GT3M | 1 |
| 38 | 11 | John Potter | #44 Acura NSX GT3M | 1 |
| 39 | 12 | Rob Ferriol | #88 Porsche 911 GT3RM | 1 |
| 40 | 13 | Misha Goikhberg | #19 Lamborghini Huracan GT3M | 2 |
| 41 | 14 | Don Yount | #42 Audi R8 LMS GT3M | 1 |
| 42 | 15 | Trent Hindman | #16 Porsche 911 GT3RM | 4 |
| 43 | 5 | Dwight Merriman | #18 ORECA LMP2 07M | –.— |