Gaël Monfils defeated Zizou Bergs in the final, 6–3, 6–4 to win the men's singles tennis title at the 2025 ASB Classic. It was his 13th ATP Tour title. Aged 38 years and 131 days old, Monfils became the oldest men's singles champion on the ATP Tour until Novak Djokovic overtook him later that year at the Hellenic Championship, and the fourth-oldest men's singles tour-level champion in the Open Era.
Alejandro Tabilo was the defending champion, but lost in the second round to Nishesh Basavareddy.
Seeds The top four seeds received a bye into the second round.
Draw
Finals
Top half
Bottom half
Qualifying Seeds
Qualifiers
Lucky losers
Qualifying draw First qualifier
Second qualifier
Third qualifier
Fourth qualifier
References
External links Main draw Qualifying draw