Open Castilla y León

The Open Castilla y León is a professional tennis tournament played on outdoor hardcourts.

It is currently part of the ATP Challenger Tour and the ITF Women's Circuit.

It has been held annually at the Villa de El Espinar in El Espinar, Segovia Province, Spain since 1986 (as a Spanish Tennis Federation event from 1986 to 1990, as a Challenger since 1991).

The women's event was added to the tournament in 2015.

Future top tenner Fernando Verdasco from Spain, 2002 runner-up, eventually took the singles title in 2007

Argentine top tenner Juan Martín del Potro won the singles in 2006

Seventeen-year-old, eventual World No. 1 Rafael Nadal from Spain clinched the victory in singles in 2003

Future World No. 1 Roger Federer from Switzerland partnered Sander Groen to a doubles victory in 1999

A nineteen-year-old Radek Štěpánek won both singles and doubles titles in 1998 for the Czech Republic