This is the royal ladies' first solo outing together and it appears they're all smiles as they found their VIP seats in the royal box.
According to WHO's sister publication PEOPLE, prior to the match, "Meghan and Kate met with former female tennis champions and chatted with ball girls and boys to learn more about what it’s like to participate in the iconic tournament."
The Duchesses attended the tennis championship between Angelique Kerber and Serena Williams – who happens to be a good friend of Prince Harry's wife.
As previously reported on WHO, a source revealed that Kate and Meghan have a supporting friendship, with the new mum-of-three helping the former Suits actress learn all about royal life.
While all eyes were definitely on the court, fans couldn't help but notice the royal court-side fashion. Markle opted for a modern look as she donned a white pair of culottes, teamed with a blue and white pin-striped shirt. Meanwhile, Kate went for a traditional dress that fell just below the knee.