2025 Zug Open

2025 Zug Open
Date	21 – 27 July
Edition	4th
Surface	Clay
Location	Zug, Switzerland
Champions
Singles
Lukáš Klein
Doubles
no champions

The 2025 Dialectic Zug Open was a professional tennis tournament played on outdoor clay courts. It was the fourth edition of the tournament and part of the 2025 ATP Challenger Tour. It took place in Zug, Switzerland between 21 and 27 July 2025.

Country	Player	Rank1	Seed
HUN	Zsombor Piros	166	1
SUI	Marc-Andrea Hüsler	170	2
FRA	Calvin Hemery	171	3
FRA	Harold Mayot	178	4
ITA	Francesco Maestrelli	179	5
ARG	Santiago Rodríguez Taverna	188	6
ARG	Facundo Díaz Acosta	189	7
LBN	Benjamin Hassan	196	8

• ¹ Rankings as of 14 July 2025.^[1]

The following players received wildcards into the singles main draw:

• Henry Bernet
• Mika Brunold
• Kilian Feldbausch

The following player received entry into the singles main draw as a special exempt:

• Lukáš Klein

The following players received entry into the singles main draw as alternates:

• Geoffrey Blancaneaux
• Lorenzo Giustino

The following players received entry from the qualifying draw:

• Rémy Bertola
• Petr Brunclík
• Román Andrés Burruchaga
• Maximilian Neuchrist
• Jakub Paul
• Stefanos Sakellaridis

• Lukáš Klein def. Harold Mayot 6–2, 6–7^(4–7), 6–4.

• Geoffrey Blancaneaux / Harold Mayot vs. Nam Ji-sung / Takeru Yuzuki, not completed.