2025 Brest Challenger

Country	Player	Rank1	Seed
SRB	Laslo Djere	79	1
ITA	Luca Nardi	83	2
FRA	Hugo Gaston	97	3
ESP	Martín Landaluce	110	4
USA	Eliot Spizzirri	111	5
FIN	Otto Virtanen	116	6
USA	Nishesh Basavareddy	125	7
ITA	Francesco Passaro	141	8
ARG	Marco Trungelliti	142	9

• ¹ Rankings are as of 13 October 2025.^[1]

The following players received wildcards into the singles main draw:

• Dan Added
• Hugo Gaston
• Maé Malige

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

• Emil Ruusuvuori

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

• Harry Wendelken

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

• Arthur Bouquier
• Calvin Hemery

The following players received entry from the qualifying draw:

• Jaime Faria
• Arthur Fery
• Jonáš Forejtek
• Lucas Poullain
• Clément Tabur
• Alexey Vatutin

The following player received entry as a lucky loser:

• Colton Smith

• Hugo Gaston def. Eliot Spizzirri 2–6, 6–2, 6–1.

• Sander Gillé / Sem Verbeek def. Théo Arribagé / Albano Olivetti 7–6^(7–5), 7–6^(7–4).