NASCAR today announced the 2018 stage lengths for its three national series, looking to build on last season's successful debut of the race format.
In the Monster Energy NASCAR Cup Series, all 2018 stage lengths will remain consistent with 2017. The race and stage lengths for the Charlotte Motor Speedway road course race in the Playoffs will be announced at a later date.
Following feedback from NASCAR Xfinity Series race teams, there will be slight updates to the stage lengths at both ISM Raceway in Phoenix and Dover International Speedway. At both Phoenix races, the stages will end at Lap 45, Lap 90 and Lap 200. For the Dover events, the stages will end on Lap 45, Lap 90 and Lap 200.