Ku dhameystir weedha soo socota: Tartankeedii ugu horreeyay wuxuu ahaa 2006, markii ay ku guuleysatay orodka Mazatlán oo ahayd 1:16:48 saacadood waxayna ku guuleysatay orodka Mexico City oo ahayd 2:51:32 saacadood. Waxay hagaajisay waqtigeedii ugu fiicnaa ee marathon-ka oo ahayd 2:43:21 saacadood sanadkii xigay waxayna ku guuleysatay billaddii lacagta ahayd ee 5000 m ee 2007 NACAC Championships ee San Salvador. Romero waxay markii ugu horreysay ka soo muuqatay marxaladda caalamiga ah ee 2009 IAAF World Half Marathon Championships waxayna ku dhameysatay kaalinta 39aad. Sannadkii xigay waxay marathon ku orodday 2:42:33 saacadood León, Mexico ka hor inta aysan ku guuleysan bilada dahabka dumarka ee dhacdada Ciyaaraha Bartamaha Ameerika iyo Kariibiyaanka 2010. Waxay marathon qeybtii hore ku orodday 1:14:13 saacadood
2010 IAAF World Half Marathon Championships ee Nanning si ay ugu dhamayso kaalinta 22aad tartanka haweenka.