Jamie McMurray posted the fastest lap in Friday’s opening Cup practice at Kentucky Speedway.
McMurray (186.780 mph) was followed by Martin Truex Jr. (186.445), Kyle Larson (186.098), Ryan Blaney (186.059) and Kyle Busch (185.938).
Busch had the best average for 10 consecutive laps at 183.148 mph. He was followed by Denny Hamlin (182.955) and Truex (182.608). Nine cars ran at least 10 consecutive laps in the session.
There were no accidents in the 115-minute session. Richard Childress Racing reported that Ryan Newman’s team would make an engine change because of a mechanical issue.
Click here for practice report
Final Cup practice is scheduled to be held from 1 - 2:25 p.m. ET today on NBCSN.
The No. 31 @CaterpillarInc team will go to a backup @ECRengines after a mechanical issue in 1st practice. He was 27th fastest.
— RCR Updates (@RCRupdates) July 7, 2017