Career
In 2003, Fernández held Mexican records in the 5,000 meter run, the 10,000 meter run, the half marathon, and the marathon. Her personal best time in a marathon was established at the 1999 London Marathon, where her time was 2:24:06. She represented her native country at three consecutive Summer Olympics, starting in 1996.
1500 Metres - 4:15.96 - Xalapa - 13/06/2003
3000 Metres - 8:53.53 - Portland, Oregon - 25/06/2000
5000 Metres - 15:04.32 - Gresham, Oregon - 17/05/2003
10,000 Metres - 31:10.12 - Brunswick, Master of Engineering - 01/07/2000
20 Kilometres - 1:06:57 - Berlin - 29/09/2002
Half Marathon - 1:09:28 - Kyoto - 09/03/2003
30 Kilometres - 1:40:51 - Berlin - 29/09/2002
Marathon - 2:24:06 - London - 18/04/1999.