In 2012 the ATP and HEAD extended their partnershp for a further five years through 2017. Under the agreement, HEAD will continue to be the official tennis ball of the ATP World Tour, as well as the official ball of the Barclays ATP World Tour Finals. The agreement marks an extension to a partnership which began back in 1994, one which celebrated its 20-year anniversary on 1 January 2013, making HEAD the longest-standing partner of the ATP.