Quick hint for elecciones also reveals election in singular and it seems much more natural to win "the election" than to win "the elections"...
If you were a group of women supporting several candidates, who all won, this would fit. Or if you were two or more women candidates for election, and you both won your respective race.
Except when referring to gubernatorial elections. Or other multiple state elections.
Shouldn't it also allow "We have won elections."? It could be used, for example, in defending the record of a minor political party.