The championship matches at the ABN AMRO World Tennis Tournament are set after semifinal action was completed.
Rublev, Fucsovics reach finale after straight sets victories
The Russian snapped a two-match losing streak against second seed Stefanos Tsitsipas with a 6-3, 7-6 (2) victory in the first semifinal to run his record to 12-1 on the year.
Rublev broke at 1-1 in the first set, but things weren't easy for him as he had to save five break points before eventually closing out the set with a break to love.
Neither man earned a break chance in the second set, but it was the fourth seed who dominated proceedings in the tiebreaker as he sealed the match with a forehand volley.
"I am happy with my performance. I am happy I am in a final", he said after the match. "I won some great matches. Everything is going well. I just want to keep working, keep trying to improve and we will see what is going to happen.
"[I play tennis] to play at the best level, to play at the best tournaments, to try and compete then to go deep and try to win them. A final is always special so I am going to try to do my best."
Fucsovics dominated Borna Coric, knocking off the Croat 6-4, 6-1 in the second semifinal. The Hungarian converted on all five break points he had to post his first win over Coric in four career meetings.
"I am very happy", he said after the 86-minute win. "[This is the] first ATP 500 final of my career. [I came from] qualifying. All the week, I was playing very solid and serving well. I am enjoying this week.
"When I went on the court I just tried to play relaxed, enjoy the match and make the best out of it.
"Andrey is playing unbelievable nowadays, especially in the ATP 500s. He didn't lose a match for a long time. It's going to be an interesting final. I will try to play my best and enjoy this moment."
Krawietz/Tecau to face Mektic/Pavic in doubles final
Mektic and Pavic improved to 15-1 on the year as they outlasted the French tandem of Jeremy Chardy and Fabrice Martin 7-6 (3), 6-7 (11), 10-4 to reach their third final of the year.
The German-Romanian duo ousted Montpellier champions Henri Kontinen and Edouard Roger-Vasselin in a match that featured no service breaks by a 7-6 (5), 6-7 (3), 10-7 scoreline.