Kyle Larson was fastest in the second Sprint Cup practice for the season finale Ford EcoBoost 400, which was shortened by rain.
Both Cup practice sessions have been shortened by rain so far.
Larson put up a speed of 176.010 mph on the first of 25 laps around Homestead-Miami Speedway.
Filling out the top five was Kevin Harvick (175.194), Carl Edwards (174.374), Greg Biffle (174.126) and Joey Logano (174.081)
Speed chart
