Translation of "contester" into Spanish

In this particular contest, the individual player gains points by outplaying and eliminating his opponent.

En este juego, el jugador individual gana los puntos al vencer y eliminar al adversario.

Other nutrients were expected to influence the value of the resource to the contestants.

Se esperaba que otros nutrientes afectaran cómo valoran los rivales el recurso.

international conventions, whether general or particular, establishing rules expressly recognized by the contesting states;

las convenciones internacionales, sean generales o particulares, que establecen reglas expresamente reconocidas por los Estados litigantes;