2017 Open Castilla y León

The 2017 Open Castilla y León was a professional tennis tournament played on outdoor hard courts. It was the 32nd edition, for men, and 3rd edition, for women, of the tournament and part of the 2017 ATP Challenger Tour and the 2017 ITF Women's Circuit. It took place in El Espinar, Segovia, Spain, between 31 July – 6 August 2017.

Seeds

 * 1 Rankings as of 24 July 2017.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇪🇸 Nicolás Álvarez Varona
 * 🇪🇸 Gerard Granollers
 * 🇪🇸 Carlos Taberner
 * 🇪🇸 Bernabé Zapata Miralles

The following players received entry from the qualifying draw:
 * 🇮🇹 Edoardo Eremin
 * 🇫🇷 Hugo Grenier
 * 🇫🇷 Mick Lescure
 * 🇪🇸 David Vega Hernández

Seeds

 * 1 Rankings as of 24 July 2017.

Other entrants
The following player received a wildcard into the singles main draw:
 * 🇪🇸 Marina Bassols Ribera
 * 🇪🇸 Ángela Díez Plágaro
 * 🇪🇸 Claudia Hoste Ferrer
 * 🇷🇺 Vera Zvonareva

The following players received entry from the qualifying draw:
 * 🇪🇸 Ainhoa Atucha Gómez
 * 🇪🇸 Alba Carrillo Marín
 * 🇪🇸 Rocío de la Torre Sánchez
 * 🇪🇸 Marta Huqing González Encinas
 * 🇪🇸 María Gutiérrez Carrasco
 * 🇪🇸 Nuria Párrizas Díaz
 * 🇧🇷 Luisa Stefani
 * 🇧🇴 Noelia Zeballos

Men's singles

 * 🇪🇸 Jaume Munar def. 🇦🇺 Alex De Minaur 6–3, 6–4.

Women's singles

 * 🇪🇸 Paula Badosa Gibert def. 🇹🇷 Ayla Aksu, 6–2, 6–4

Men's doubles

 * 🇪🇸 Adrián Menéndez-Maceiras / 🇺🇦 Sergiy Stakhovsky def. 🇪🇸 Roberto Ortega Olmedo / 🇪🇸 David Vega Hernández 4–6, 6–3, [10–7].

Women's doubles

 * 🇺🇸 Quinn Gleason / 🇧🇷 Luisa Stefani def. 🇹🇷 Ayla Aksu / Bibiane Schoofs, 6–3, 6–2