Mexico triumphed in their top-of-the-table clash with Puerto Rico at the International Wheelchair Basketball Federation (IWBF) Central America and Caribbean Championship in San Jose.
Both nations had recorded three straight wins prior to their meeting in Costa Rica's capital city.
The match would prove to be a one-sided affair, however, as Mexico pulled clear of their opponents to record a 71-38 win.
The defending champions are assured of a place in the gold medal match at the tournament.
Mexico are also guaranteed a place at the Lima 2019 Parapan American Games with the top two teams qualifying.
El Salvador claimed their second victory of the competition, with a 44-35 win over the Dominican Republic keeping their hopes of earning the second automatic spot alive.
¡LA SELECCIÓN MEXICANA DE BÁSQUETBOL SOBRE SILLA DE RUEDAS DE LA RAMA VARONIL YA CALIFICÓ A LOS JUEGOS PARA-PANAMERICANOS DE LIMA 2019, AL DERROTAR A PUERTO RICO 71 A 38!— ADESSIREM (@ADESSIREM1) October 26, 2018
FELICIDADES!! #mexiquenses #adessirem #deporteadaptado pic.twitter.com/690eDFzciQ
Nicaragua also remain in contention as they secured a 61-42 success against Costa Rica.
Both El Salvador and Nicaragua have two wins to their credit, but Puerto Rico remain second in the round-robin event with three wins.
Puerto Rico could seal second spot should they overcome the Dominican Republic in their last group fixture tomorrow.
The top two teams will go head-to-head in the final of the Championships on Saturday (October 27).