The series was headlined by two ATP World Tour Masters 1000 and two WTA Premier 5 events.
Serena Williams improved the biggest payout in professional tennis history record which she previously shared with Rafael Nadal.
[1] In order to be included in the final standings and subsequently the bonus prize money, a player needs to have countable results from at least two different tournaments.
Starting from the 2014 season, a new rule has been added to double the points of a player who has obtained countable results in at least three tournaments.
The players who finish in the top three in the series can earn up to $1 million in extra prize money at the US Open.