Kyle Busch, Kyle Larson Fastest in Darlington Cup Series Practice

Kyle Larson

Pete McCole/AR1

Kyle Busch and Kyle Larson topped Friday's Monster Energy NASCAR Cup Series practice sessions for Sunday nights Bojangles Southern 500 at Darlington Raceway.

Larson was quickest in the opening afternoon session in the no. 42 Chevrolet, turning in a lap of 173.064 mph around the historic 1.336-mile oval. he was followed by Denny Hamlin (172.644), Brad Keselowski (172.584), Ricky Stenhouse, Jr. (171.896) and Kevin Harvick (171.890).

Busch rallied from an earlier spin to lead the final practice session, clocking in at 173.320 in his no. 18 Toyota. Harvick (173.070), Jamie McMurray (172.990), Martin Truex, Jr. (172.729) and Hamlin (172.632) rounded out the top five.