2023 Fairfield Challenger

The 2023 Fairfield Challenger was a professional tennis tournament played on hard courts. It was the seventh edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Fairfield, California, United States between October 9 and October 15, 2023.

2023 Fairfield Challenger
Date	9–15 October
Edition	7th
Surface	Hard
Location	Fairfield, California, United States
Champions
Singles
Zachary Svajda
Doubles
Evan King / Reese Stalder

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
USA	Alex Michelsen	110	1
USA	Nicolas Moreno de Alboran	152	2
USA	Denis Kudla	165	3
USA	Zachary Svajda	170	4
CAN	Alexis Galarneau	174	5
AUS	Adam Walton	199	6
USA	Tennys Sandgren	204	7
SUI	Alexander Ritschard	209	8

• ¹ Rankings are as of September 25, 2023.

Other entrants

The following players received wildcards into the singles main draw:

• Ozan Baris
• Thai-Son Kwiatkowski
• Aidan Mayo

The following players received entry into the singles main draw using protected rankings:

• Christian Harrison
• Brayden Schnur

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

• Christian Langmo
• Skander Mansouri

The following players received entry from the qualifying draw:

• Stefan Dostanic
• August Holmgren
• Strong Kirchheimer
• Alfredo Perez
• Keegan Smith
• Learner Tien

The following player received entry as a lucky loser:

• Federico Agustín Gómez

Champions

Singles

Main article: 2023 Fairfield Challenger – Singles

• Zachary Svajda def. Nishesh Basavareddy 6–4, 6–1.

Doubles

Main article: 2023 Fairfield Challenger – Doubles

• Evan King / Reese Stalder def. Vasil Kirkov / Denis Kudla 7–5, 6–3.