Ana Gabriela Guevara Espinoza (born March 4, 1977, in Nogales

Nogales, Sonora

Heroica Nogales , more commonly known as Nogales, is a city and its surrounding municipality on the northern border of the Mexican State of Sonora. The municipality covers an area of 1,675 km², and borders to the north the city of Nogales, Arizona, United States, across the U.S.-Mexico border...

, Sonora

Sonora

Sonora officially Estado Libre y Soberano de Sonora is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided into 72 municipalities; the capital city is Hermosillo....

) is a now-retired Mexican

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 track and field

Track and field

Track and field is a sport comprising various competitive athletic contests based around the activities of running, jumping and throwing. The name of the sport derives from the venue for the competitions: a stadium which features an oval running track surrounding a grassy area...

 athlete, specialized in the 400 meters. Her career began in 1996 carrying out diverse tours, participating in her first international competences. In 1998, she won two silver medals in the Central American and Caribbean Games in the distances of 400 and 800 meters.

Her first major victory was the gold medal in the 400m at the 1999 Pan American Games

Pan American Games

The Pan-American or Pan American Games are a major event in the Americas featuring summer and formerly winter sports, in which thousands of athletes participate in a variety of competitions. The Pan American Games are the second largest multi-sport event after the Summer Olympics...

 in Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

.