2025 Tiburon Challenger

Country	Player	Rank1	Seed
AUT	Jurij Rodionov	156	1
USA	Murphy Cassone	174	2
GBR	Jack Pinnington Jones	178	3
LBN	Benjamin Hassan	195	4
COL	Nicolás Mejía	199	5
KAZ	Dmitry Popko	214	6
USA	Michael Zheng	227	7
GBR	Johannus Monday	228	8

• ¹ Rankings are as of September 22, 2025.^[1]

The following players received wildcards into the singles main draw:

• Samir Banerjee
• Duncan Chan
• Trevor Svajda

The following player received entry into the singles main draw using a protected ranking:

• Philip Sekulic

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

• Abdullah Shelbayh

The following player received entry into the singles main draw through the Next Gen Accelerator programme:

• Federico Bondioli

The following player received entry into the singles main draw as an alternate:

• Oliver Tarvet

The following players received entry from the qualifying draw:

• Bor Artnak
• Micah Braswell
• Andre Ilagan
• Daniel Masur
• Renta Tokuda
• Olle Wallin

• Michael Zheng def. Tyler Zink 6–4, 6–4.

• Finn Reynolds / James Watt def. Benjamin Kittay / Joshua Sheehy 6–2, 6–3.