The Duchess of Cambridge dazzled in a white shirt dress with a small bow and Alexander McQueen belt.
The 37-year-old appeared in high spirits as she mingled in Royal Box on day two of the tennis.
She sat alongside British tennis player pals Katie Boulter and Anne Keothavong.
Kate watched British player Harriet Dart play American Christina McHale, during the Women's Singles.
The mother-of-three has had a busy week. On Monday, the royal appeared at the famous Hampton Court Flower Show, where her garden is being displayed.
The brunette dazzled again in a bottle green midi dress by Sandro, which had a funky polka-dot print.
WATCH KATE STUN IN PAISLEY AT A PHOTOGRAPHY WORKSHOP!