Jannik Sinner claimed a commanding victory over rival Carlos Alcaraz to win the lucrative Six Kings Slam in Riyadh, Saudi Arabia.
Sinner, replaced as world number one by Alcaraz following the US Open in September, exacted revenge for his defeat in the New York final with a 6-2 6-4 win.
With his victory, the Italian, 24, earned a reported $6m (£4.5m) - including $4.5m (£3.4m) in prize money, in addition to a $1.5m (£1.1m) participation fee.
While the pair split the four Grand Slam titles between them this season, Sinner was dominant from the outset against Alcaraz, who said his opponent was "just too good" on Saturday.