Denis Shapovalov defeated Casper Ruud in the final, 7–6(7–5), 6–3 to win the singles tennis title at the 2025 Dallas Open. It was his third ATP Tour title and first ATP 500 title.[1] Shapovalov was the first player to defeat the top three seeds and three top 10-ranked opponents en route to an ATP 500 title since Nick Kyrgios at the 2019 Mexican Open and the fourth player overall (after Grigor Dimitrov, Juan Martín del Potro and Kyrgios) with three Top 10 wins in ATP 250 or 500 event (since the current category system was introduced in 2009).[2]
Tommy Paul was the defending champion,[3] but lost in the semifinals to Shapovalov.[4]