James Archuleta struck out five Bernalillo batters through four innings, but West Las Vegas’ strong defensive effort was trumped by the Spartans’ go-ahead run in the fifth.
Bernalillo won the pitchers’ duel 2-1 Tuesday afternoon at WLV Field.
The Dons fell to 5-2. They and Robertson (7-2) will play in this weekend’s Portales tournament.
The Spartans opened with a run in their first at-bat.
But West tied the score soon enough, as an Archuleta base hit scored Santiago Mondragon from third base.