The player with the most aces in tennis history is Ivo Karlovic from Croatia, who has hit a total of 13,619 aces as of September 2021. Karlovic is known for his big serve and has held the record for most aces in a single season, hitting 1,477 aces in 2017. He surpassed the previous record holder, Goran Ivanisevic, another Croatian player who hit a ...
