Friday practice for the Ford EcoBoost 400 Monster Energy NASCAR Cup Series race at Homestead-Miami Speedway is over, after 85 scheduled minutes, the top-five, slowest and notes:
#18-Busch(P) 172.695
#78-Truex Jr.(P) 172.529
#4-Harvick(P) 171.865
#42-Larson 171.865
#11-Hamlin 170.854
most laps run: #24-Elliott 34
best 10 consecutive lap ave: #42-Larson 165.012 (7 drivers)
slowest: #51-Black 155.952 & #66-Starr 157.467
#2-Keselowski 21st
#4-Harvick 3rd
#18-Busch 1st
#78-Truex Jr 2nd
notes: #88-Dale Earnhardt Jr. will have to start at the rear of the race due to an engine change during practice Friday at Homestead when a pistion head got burned
See the fastest speeds, best 10 consecutive lap average, laps run on the Friday Practice speeds (pdf)