NEXT GEN ATP FINALS INNOVATIONS
Continuing from 2017
Best-of-five set format with shorter sets to 4 (tiebreak at 3-all) No-Ad scoring No-lets Electronic line-calling through Hawk-Eye Live 25-second shot clock In-match player coaching via headsets
Free crowd movement during play next to the sidelines.
A limit of one medical timeout per match.
New in 2018
Player warm-up to be reduced by a further minute, from 5 to 4 minutes.
Players to use towel rack at back of the court to remove onus on ball kids handling the towels.