The Mountaineers (0-3) jumped out to a 4-0 lead in the second inning but watched LaGrange (2-0) storm back with three runs in the bottom of the frame and seize control with a four-run fourth inning.
The Mountaineers fell 7-1 to LaGrange in the first game before suffering a 16-4 loss in seven innings to Huntingdon in the nightcap.
Amyia Bowie scored 28 points and St. Thomas dominated the second half Friday night to hand Schreiner a 73-60 defeat at Stephens Family Arena, extending the Mountaineers' losing streak to seven games.
The Celts dominated the glass, outrebounding the Mountaineers 44-23, and capitalized on second-chance opportunities to build a commanding 35-23 halftime lead. St. Thomas never trailed in the contest.
The Mountaineers (1-2) led 6-3 after three innings but couldn't hold on against the Pirates (1-0).
Schreiner's Mendoza (1-0) faced just 20 batters — one over the minimum — in six dominant innings, walking one and allowing only a third-inning single to Casey Trevino.
The Mountaineers pulled within 9-5 in the fourth inning, scoring three unearned runs, but couldn't sustain the momentum.
The visiting Eagles built a commanding 36-18 halftime lead and maintained control throughout the second half to hand the Mountaineers their fifth consecutive loss.
The Mountaineers connected on 15 of 37 attempts from beyond the arc while shooting 47.9% overall from the field.
