2025 Open Castilla y León

Country	Player	Rank1	Seed
CRO	Duje Ajduković	177	1
FRA	Hugo Grenier	187	2
TUN	Aziz Dougaz	212	3
FRA	Arthur Bouquier	215	4
GBR	Johannus Monday	227	5
GBR	Oliver Crawford	234	6
FRA	Clément Chidekh	235	7
FRA	Antoine Escoffier	240	8

• ¹ Rankings as of 14 July 2025.^[1]

The following players received wildcards into the singles main draw:

• Mario González Fernández
• Rafael Jódar
• Iñaki Montes de la Torre

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

• Aryan Shah

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

• Raúl Brancaccio

The following players received entry from the qualifying draw:

• Robin Catry
• John Echeverría
• Arthur Reymond
• Abdullah Shelbayh
• Adrià Soriano Barrera
• Max Wiskandt

• George Loffhagen def. Nicolás Álvarez Varona 7–6^(7–4), 6–7^(4–7), 6–4.

• Matías Soto / Federico Zeballos def. Arthur Reymond / Luca Sanchez 3–6, 7–6^(7–5), [16–14].