On-track action continues to heat up in the Rolex 24 At Daytona, with Filipe Albuquerque in the No.5 Mustang Sampling Cadillac dueling Helio Castroneves Acura Team Penske No.7 for the overall lead shortly before the seven-hour mark.

Both cars made their way past the No.31 Whelen Engineering Cadillac, which led with Mike Conway before his pit stop when he turned the car over to Eric Curran.

• Hour 7 results

“It was very tricky when the rain came down and we were on slicks,” Conway said. “It was quite hard to tell where it was wet. Then we made the right call and I pitted for wets, and I managed to get up to the front. We were 46 seconds behind before that, so it was good to get back in the hunt. It was fun. The car was hooked up so I was just driving – nothing crazy – just steady and staying out of trouble.”

With Albuquerque and Curran both pitting their Cadillacs just before the hour ended, Castroneves regained the lead after seven hours, followed by Dane Cameron in the No.6 Acura and Scott Sharp in the No.2 Nissan.

Ford Chip Ganassi Racing ran 1-2 in GTLM, with Sebastian Bourdais (No.66) leading Richard Westbrook (No.67), followed by Tony Vilander in the No, 62 Risi Competizione Ferrari 488 GTE.

In GTD, Sheldon van der Linde continued to lead in the No.29 Audi, followed by the No.93 Acura of Mario Farnbacher and the No.33 Mercedes of Ben Keating.

The hour ran green flag to flag. So far, there has been only one caution period for four laps.

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