Before passing the trophy to champion Alcaraz, Kate commiserated and shook the hand of runner-up Novak Djokovic.
The Princess of Wales, is a tennis fan and patron of the the All England Lawn Tennis and Croquet Club at Wimbledon.
She arrived smiling at the Wimbledon tennis championships to watch the men's singles final.
Kate, wearing a purple Safiyaa dress, attended Sunday's final with her daughter, Princess Charlotte, and her sister Pippa Matthews.
Great to be back at — The Prince and Princess of Wales (@KensingtonRoyal) @Wimbledon!There's nothing quite like The Championships 🎾 pic.twitter.com/uFkI6baNfLJuly 14, 2024
Arriving at Centre Court's royal box to take her seat, Kate waved to spectators, some holding Union Jack flags, who gave her a standing ovation.Â
Earlier in the tournament, Kate paid tribute to double champion Sir Andy Murray, saying he should be "so very proud" after he missed out on a final chance at Wimbledon.
In a personally-signed message on social media, the princess wrote: "An incredible #Wimbledon career comes to an end. You should be so very proud @andy_murray. On behalf of all of us, thank you! C."
An incredible — The Prince and Princess of Wales (@KensingtonRoyal) #Wimbledon career comes to an end. You should be so very proud @andy_murray. On behalf of all of us, thank you! CJuly 6, 2024
The 42-year-old, wife of heir-to-the-throne Prince William, underwent major abdominal surgery in January which revealed the presence of cancer.Â
She has been undergoing treatment since then.
She made her return to public duties in June at "Trooping the Colour", the annual military parade to mark the official birthday of King Charles, and said she hoped to attend other events over the summer.
"I am making good progress, but as anyone going through chemotherapy will know, there are good days and bad days," she said in a personal written message ahead of that appearance.
"My treatment is ongoing and will be for a few more months," said the princess.
Kate, Princess of Wales made her return to public duties in June. (AP PHOTO)
Her office, Kensington Palace, has declined to give specific details about the type of cancer or her medical condition, other than to say the treatment had begun in February.
Charles, 75, has also been undergoing treatment for cancer.Â
He returned to public duties in April, and has remained busy, although his daily commitments are being limited to minimise risks to his recovery.Â
with PA