Christian Fittipaldi and Action Express Racing lead the field overall with two hours remaining in the Mobil 1 Twelve Hours of Sebring.
Dane Cameron has the sister Action Express Corvette DP back into second in the overall standings after a spin from co-driver Eric Curran last hour.
Misfortune hit one of the Prototype front runners with two hours and thirty-three minutes remaining when Max Angelelli stopped on track in Turn 7.
That caution period allowed the pole-sitting Michael Shank Racing No. 60 Ligier JS P2 Honda back onto the lead lap, and currently runs in fifth with Olivier Pla at the controls despite a quick spin.
A big shakeup took place in GTD when the No. 16 Change Racing Lamborghini Hurrican GT3 driven by Corey Lewis picked up a stop and hold plus 4-minute penalty for an improper wave around. The penalty occurred while Lewis was leading the class.
He has served the penalty and is now running 11th.
Right at the end of hour 10, the second-place No. 25 BMW M6 GTLM was handed a drive-through penalty for exceeding its boost.
GTD front-runners Stevenson Motorsports were forced to retire their No. 9 Audi R8 LMS GT3 after suffering exhaust issues.
After 10 hours, the other class leaders are Mark Wilkins for CORE autosport (PC), Tommy Milner in the No. 4 Chevrolet Corvette C7 (GTLM), and Mario Farnbacher in the No. 23 The Heart of Racing Porsche 911 GT3 R (GTD).
Conditions for the final two hours got significantly more difficult, as rain made its reappearance on parts of the track.