2026 BOSS Open

Singles

• Ben Shelton def. Taylor Fritz, 6–4, 2–6, 6–4

Doubles

• Yannick Hanfmann / Jan-Lennard Struff def. Daniil Glinka / Stefanos Sakellaridis, 7–6^(7–2), 3–6, [11–9]

Seeds

Country	Player	Rank	Seed
USA	Ben Shelton	5	1
USA	Taylor Fritz	9	2
KAZ	Alexander Bublik	10	3
CZE	Jiří Lehečka	12	4
USA	Tommy Paul	21	5
USA	Frances Tiafoe	22	6
ESP	Alejandro Davidovich Fokina	23	7
FRA	Corentin Moutet	34	8

• Rankings are as of 25 May 2026.

Other entrants

The following players received wildcards into the main draw:

• Diego Dedura
• Tom Gentzsch
• Nick Kyrgios

The following players received entry from the qualifying draw:

• Alexis Galarneau
• Pierre-Hugues Herbert
• Gauthier Onclin
• Sho Shimabukuro

The following player received entry as a lucky loser:

• Roman Safiullin

Withdrawals

• Flavio Cobolli → replaced by Giovanni Mpetshi Perricard
• Justin Engel → replaced by Quentin Halys
• Tomás Martín Etcheverry → replaced by Jan-Lennard Struff
• Tomáš Macháč → replaced by James Duckworth
• Jakub Menšík → replaced by Aleksandar Kovacevic
• Alex Michelsen → replaced by Rinky Hijikata
• Brandon Nakashima → replaced by Martín Landaluce
• Tommy Paul → replaced by Roman Safiullin
• Learner Tien → replaced by Daniel Altmaier
• Valentin Vacherot → replaced by Yannick Hanfmann
• Alexander Zverev → replaced by Fábián Marozsán

Seeds

Country	Player	Country	Player	Rank	Seed
POR	Francisco Cabral	CRO	Nikola Mektić	39	1
BRA	Orlando Luz	BRA	Rafael Matos	63	2
GER	Jakob Schnaitter	GER	Mark Wallner	70	3
FRA	Sadio Doumbia	MEX	Santiago González	74	4

• Rankings are as of 25 May 2026.

Other entrants

The following pairs received wildcards into the doubles main draw:

• Daniel Altmaier / Hendrik Jebens
• Alexander Bublik / Nick Kyrgios

The following pair received entry as alternates:

• Daniil Glinka / Stefanos Sakellaridis

Withdrawals

• Tommy Paul / Ben Shelton → replaced by Daniil Glinka / Stefanos Sakellaridis