The three-time major winner converted four of nine breakpoints to claim his first clay title since 2016, a boost Murray, who said he hoped to play the French Open later this month despite suffering early exits from Madrid and Monaco.

It was Murray's third victory over a top-20 player this year and the twice Olympic gold medallist is expected to climb from 52nd to 42nd in the rankings after Sunday's win.

"This last year, 18 months, has been a bit of struggle with my game. But (my team) have been there supporting me and working with me to try and get better," Murray said in remarks provided by the ATP.

"We keep going from here."

Paul, who lost to Novak Djokovic (36) in the Australian Open semi-finals in January, stumbled into a trio of double faults and was unable to set up a single breakpoint opportunity in the final two sets.

The Challenger Tour said Murray's win marked the longest gap ever between titles on the secondary circuit, with Murray having last won more than 17 years ago in Binghampton.