BOSS OPEN 2026

Dates: June 8–14, 2026
Location: Stuttgart, Germany (Tennisclub Weissenhof)
Surface: Grass Court
Category: ATP 250
Prize Money: Not listed
Draw: Singles 28, Doubles 16
Official Website: bossopen.com

About the tournament
The BOSS OPEN is a historic Stuttgart tournament first held in 1898. It shifted from clay to grass in 2015 and now helps launch the extended grass-court swing in the week immediately after Roland Garros. Played at Tennisclub Weissenhof, the event has attracted top-tier champions over the years, including Rafael Nadal, Roger Federer, Dominic Thiem, Jack Draper, and Taylor Fritz.