The UMKC women stuck with Grand Canyon for three quarters on Thursday night in Phoenix.
But the Kangaroos went cold in the fourth quarter and lost to the Antelopes 75-64.
UMKC trailed at the end of three quarters 53-52, but Grand Canyon outscored UMKC 22-12 in the fourth quarter.
Aries Washington led the Kangaroos with 24 points and nine rebounds.
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UMKC fell to 6-13 overall and 1-5 in the WAC, while Grand Canyon improved to 11-7, 3-2.