quality:correction, structural:summarization
Equipment and endorsements

Early in her career, Graf wore Dunlop apparel, before signing an endorsement contract with Adidas in 1985. She had an Adidas sneakers line known as the St. Graf Pro line. Early in her career, Graf used the Dunlop Maxpower Pro and Maxpower Kevlar racquets and then played with the Max 200G racquet from 1984 to 1993 before switching to Wilson from 1994 to 1999. She first used the Wilson Pro Staff 7.0 lite, then switched to the Pro Staff 7.5 in 1996 and to the Pro Staff 7.1 in 1998. Graf's racquets were strung at 29 kilograms (64 pounds), significantly above the 50–60 pound range recommended by Wilson. In 2006, she signed an endorsement deal with Head. In 2010, Graf and Agassi collaborated with Head and developed the new line of Star Series tennis racquets.

Graf has signed many endorsement deals throughout the years including a ten-year endorsement deal with car manufacturer Opel in 1985, and Rexona from 1994 to 1998. Other companies she has endorsed include Barilla, Apollinaris, Citibank, Danone and Teekanne. She has appeared in many advertisements and television commercials with Andre Agassi including Canon Inc. and Longines in 2008 (Agassi became Longines ambassador in 2007). In 2015, she was appointed as the brand ambassador of Kerala tourism, for promoting Ayurveda in North America and Europe.