The Argentine led McDonald 2-6, 7-5, 5-2 when the wet weather intervened on Friday evening, but he wasted little time in reaching his fourth tour-level final and first on grass when the action resumed Saturday, advancing 2-6, 7-5, 6-2 in two hours and seven minutes.

Cerundolo, who has earned a career-best 27 wins this season, will continue the quest for his second tour-level crown when he meets second seed Tommy Paul in the championship match later on Saturday. Cerundolo won his only previous tour-level trophy on clay in Bastad last year.

The American McDonald was in control early in the semi-final with a 6-2, 4-1 advantage. But Cerundolo snapped back with four straight games and then won six consecutive games to take the second set and open up a 4-0 lead in the third. McDonald snatched one break back in the deciding set before rain stopped play, but was broken immediately when the action resumed on Saturday.

In the second semi-final of the day, Paul moved past Frenchman Gregoire Barrere 6-4, 6-3 to reach his second tour-level final of the season. The American, currently No. 15 in the Pepperstone ATP Live Rankings, lifted his only tour-level trophy in Stockholm in 2021.