Carlos Alcaraz defeated Adam Walton 6–4, 7–6 in the first round of the ATP 250 Queens Club Championship on grass on 17 June 2025. As the overwhelming favourite with odds of 1.02, Alcaraz delivered the expected result against the 28.15 outsider Walton, securing victory in straight sets. The Spaniard's control throughout the match, particularly his ability to close out the opening set convincingly and edge the second through a tie-break, underscored his grass-court credentials heading into the tournament's latter stages. The result maintains Alcaraz's progression through the draw at one of the ATP calendar's most prestigious warm-up events before the grass-court season peaks.