The GNP Seguros Tennis Open (formerly known as Mextenis León Open, Torneo Internacional Challenger León, Challenger Ficrea presentado por ultra, Torneo Internacional AGT and Abierto Internacional Leon) is a professional tennis tournament played on outdoor hardcourts. It is currently part of the ATP Challenger Tour and was part of the ITF Women's Circuit until 2016. It was held annually in León, Guanajuato, Mexico, from 2003 until 2023. In 2024, it was upgraded to a Challenger 125 and moved to Acapulco, Mexico with an increased prize money fund of $164,000.