Popularly known as “La Locomotora” (The Locomotive), Alejandra Marina Oliveras was born in El Carmen in Jujuy, Argentina on March 20, 1978. Presently, she now lives in Córdoba City, General Bustos.
Alejandra grew up fighting with boys and beating them at arm wrestling. Mike Tyson became her inspiration which made her decide to go into boxing. In 2003 she started joining competitions in Villa Maria.
She is being trained by Carlos Tello at Polideportivo Corral de Palos in Córdoba. Her gym is known to develop former champion boxers of Argentina. Alejandra had an amateur record of 38 fights in her hometown. She became professional in August 25, 2005 when she fought at Villa Diego in Santa Fe, Argentina. She won over Maria del Carmen Potenza right after her debut fight by a Technical Knockout in the second round. After that she won two more fights against Maria del Carmen Montiel and Silvia Gervasi Hipolito Buchardo both from Buenos Aires by a unanimous decision.
Early in 2006, Alejandra again won over Maria del Carmen Potenza during their rematch in Anfiteatro Municipal Rio Cuarto. The next few months she continued to achieve victories over Bettina Garino by a split decision; then to Brazilian Miryam Da Silva who others suspect to be Lurival De Lima; to Jackie Nava, which stunned the more than 3,000 audience in Palenque del Hipódromo in Tijuana; to Anays Guiterrez Carrillo in defense of the WBC Junior Featherweight title; and to kick boxer Claudia Andrea from Argentina at the Lawn Tennis Club in Argentina.
In March 2007, Alejandra met with Jackie Nava for a rematch to gain the WBC Junior Featherwight title which brought the fight to a 10-round draw. In August 4, 2007 Alejandro won a fight against Brazilian Adriana Salles with a 10 round unanimous decision. Oliveras carried a professional record of 10-0-2 with 3 Knockouts.