Olivera in the 2012 Summer Olympics marathon
|Born||4 January 1976|
|Height||1.65 m (5 ft 5 in)|
|Weight||55 kg (121 lb)|
She took the gold medal at the 1999 Pan American Games, setting a Pan American Games record at 2:37.41 hours. She won a bronze at the following edition in 2003. Starting in 1996, she represented her native country in three consecutive Summer Olympics.
Olivera made her breakthrough at the junior level in 1994 when she won the 10,000 metres gold and 3000 metres bronze medals at the South American Junior Championships in Athletics. The following year she upgraded to a gold and a silver medal at the Pan American Junior Championships, before going on to complete a hat-trick of medals at the South American Junior Championships – she secured a 10,000 m and 3000 m double and also won the 1500 metres silver behind Bertha Sánchez.
Olivera is a two-time winner of the South American Cross Country Championships, having beaten all comers in both the long and short races in 1999. She is a five-time winner and course record holder of the Santiago Marathon. She won the 1995 edition of the Buenos Aires Marathon in Argentina and placed fourth at the 74th Saint Silvester Marathon in 1998.
She enjoyed success on the track at continental level, completing a 10,000 metres/5000 metres silver medal double at both the 1997 and 2003 South American Championships in Athletics. Further to this, she won a silver and a bronze at the 1999 edition of the competition. At the Ibero-American Championships, she has won medals in a number of events, beginning with a 5000 m gold medal and 10,000 m bronze in 1996, the 10,000 m gold at the 2000 edition, and finally a silver medal in the 3000 metres steeplechase in 2002.
Her personal best for the marathon is 2:32:23, set at the 1999 Rotterdam Marathon, which is also the Chilean record for the event. She is also the national record holder over the half marathon, 10,000 m and 5000 m.
- South American Junior Championships (Women). GBR Athletics. Retrieved on 2010-10-30.
- Pan American Junior Championships. GBR Athletics. Retrieved on 2010-10-30.
- Continental Cross Country Championships and Cups. GBR Athletics. Retrieved on 2010-03-02.
- : Juraj Gasparovic & Klaas Loonstra (2010-04-13). Santiago Marathon. Association of Road Racing Statisticians. Retrieved on 2010-10-30.
- South American Championships (Women). GBR Athletics. Retrieved on 2010-10-30.
- Ibero American Championships. GBR Athletics. Retrieved on 2010-10-30.
- Chilean Athletics Records - Women Outdoor. Fedachi. Retrieved on 2010-10-30.