Pipo Derani and Felipe Nasr have narrowed the points gap in the DPi title battle with a dominant win in the Acura Grand Prix of Long Beach.
The #31 Whelen Engineering Cadillac DPi-VR started the race from pole position and had a relatively unchallenged run to the chequered flag.
Nasr briefly lost the lead to the #01 Chip Ganassi Racing Cadillac of Kevin Magnussen after Magnussen made a bold pass up the inside at the Fountain.
The Dane then made an error when defending from Nasr at turn one and overshot the corner, clipping the tyre barrier and concrete wall.
Magnussen and Renger van der Zande recovered and finished the race second, with the #5 Mustang Sampling Cadillac DPi-VR of Tristan Vautier and Loic Duval third.
Filipe Albuquerque and Ricky Taylor finished fourth in the #10 Wayne Taylor Racing Acura ARX-05. Albuquerque moved from fifth to third on the opening lap, but the championship leaders lacked pace and dropped back down the order.
The pairing still leads the championship, but the points gap has been brought down to 19 points with only Petit Le Mans remaining for the DPi teams.
Harry Tincknell and Oliver Jarvis finished fifth in the #55 Mazda RT24-P, while the #60 Meyer Shank Racing Acura failed to reach the finish after a late clash with the wall for Olivier Pla.
Tandy and Milner keep title hopes alive
Nick Tandy and Tommy Milner have taken victory over team-mates Antonio Garcia and Jordan Taylor in GTLM.
Tandy and Milner began the race in second place in the #4 Corvette C8.R, but Milner passed team-mate Garcia in the #3 Corvette shortly before their only pitstop.
The Anglo-American pairing needed a victory in order to keep their championship prospects alive.
Cooper McNeil and Mathieu Jaminet finished a distant third in the #79 WeatherTech Porsche 911 RSR-19.
Paul Miller Racing converts pole, disaster for Turner
Paul Miller Racing have taken a lights-to-flag victory in GTD, while championship leaders Turner Motorsports suffered a disastrous race on the California street track.
Madison Snow and Bryan Sellers led the entire race in the #1 Lamborghini Huracan GT3 Evo, taking a well-deserved win.
Laurens Vanthoor and Zacharie Robichon finished second in the #9 Pfaff Motorsports Porsche 911 GT3 R, which allowed them to take the points lead in GTD.
Points leaders Turner Motorsports finished last in GTD following a crash for Robby Foley. Foley crashed the #96 BMW M6 GT3 into the tyre barrier at turn 8 and the team suffered multiple issues afterwards, leaving them four laps down.
The class podium was completed by the #16 Wright Motorsports Porsche 911 GT3 R of Patrick Long and Trent Hindman.