June 14 (Reuters) - Poland's ⁠Kamil Majchrzak capped a dream week ⁠by beating second seed Alex de Minaur ‌6-3 2-6 7-6(5) to win the Libema Open in 's-Hertogenbosch and claim his first ATP Tour title on ​Sunday.

The 30-year-old held his nerve ⁠in a tight ⁠deciding-set tiebreak to secure the biggest win of ⁠his career ‌against the Australian, one of the tour's most consistent performers.

Majchrzak became ⁠only the third Polish man to ​win a ‌tour-level title in the Open Era, joining ⁠Wojtek Fibak ​and Hubert Hurkacz.

"I don't know what to say. This is an incredible moment for me," ⁠Majchrzak said. "Alex is one of ​the toughest opponents you can face, so I knew I had to play my best ⁠to win."

The victory marks a breakthrough for Majchrzak, who had previously struggled to convert deep runs into titles.

For Australia's De Minaur, the ​runner-up finish continues a ⁠strong start to the grass season and he ​will now go to ‌Queen's Club next week where ​he will be top seed.

(Reporting by Martyn Herman, Editing by Ken Ferris)