The Lady Raiders suffered through not one but two scoreless droughts on their way to a season-low 14 first half points.
Texas Tech shot just 26 percent from the field in the game and was outrebounded by the Mountaineers 52-32.
Ivonne CookTaylor scored 12 points in the loss.
Texas Tech (6-21, 0-16) returns to Lubbock for its home finale against Texas on Saturday at 2 p.m.
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