The Wimbledon champion's girlfriend looked relaxed as she watched him breeze through his first match beating his opponent Michael Llodra 6-2, 6-4, 6-3 in just over 90 minutes.
Artist Kim was the epitome of courtside chic wearing a black blazer and championing the British high street with a black leather Ted Baker bag.
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She wore trademark bouncy long locks loose and let her natural radiance glow with a fuss-free makeup look.
With his ever-supportive Kim and mother Judy by his side in the Big Apple, Andy now prepares to face Argentina's Leonardo Mayer in the second round on Friday.
Although their minds will be on Andy's game, being at the tournament will no doubt trigger a few memories for the pair who first met at a US Open party in 2005.
At the time, Kim was travelling with her father, Nigel, who was head of the women's section of the Lawn Tennis Association in England.
Their romance developed quickly but the couple managed to keep it under wraps as they spent time getting to know each other.
Following Andy's historic Wimbledon victory in July which saw him become the first British man to win Wimbledon since Fred Perry in 1936, they jetted off to the Bahamas for some well-earned rest.
Read Andy and Kim's love story