No. 1 seed Daniil Medvedev of Russia and No. 5 Hubert Hurkacz of Poland will meet in Sunday's final at the Terra Wortmann Open in Halle, Germany.
Medvedev marched to a 7-6 (3), 6-3 win against home favorite Oscar Otte, and Hurkacz outlasted Australia's Nick Kyrgios 4-6, 7-6 (2), 7-6 (4) in Saturday's semifinals.
Medvedev and Hurkacz have split four previous matches, with Hurkacz winning the only meeting on grass in five sets in the round of 16 at Wimbledon last year.
No. 2 seed Matteo Berrettini of Italy reached the finals in London for the second straight year with a 6-4, 6-3 win against Botic Van De Zandschulp of the Netherlands.
In a rain-interrupted semifinal that lasted an hour and 31 minutes, Berrettini struck eight aces and only lost his serve one time.
Berrettini's opponent in Sunday's Queen's Club final is unseeded Serbian Filip Krajinovic, who advanced with a 6-3, 6-3 victory against No. 7 seed Marin Cilic of Croatia. Krajinovic saved all six break points and withstood 15 aces by Cilic in the one-hour, 21-minute match.
--Field Level Media