PULLMAN — Washington State lost its chance to stay undefeated in the Pac-12 as Utah’s Michelle Plouffe scored four points in the final seconds and the Utes upset the Cougars 59-57 in women’s basketball Sunday.

Plouffe scored inside, tying the score at 57 and following a missed layup by the Cougars, she hit the winning layup with one second remaining.

The game was nip-and-tuck down the stretch with WSU going up by six points with 3:42 left on a Sage Romberg basket. Utah scored the next six points — four by Emily Potter — to knot the game at 53. WSU’s Taylor Edmondson hit a jumper at 1:02 putting WSU up 57-55.

Plouffe and Potter scored 17 points each for Utah (8-9, 1-5 Pac-12).

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Tia Presley led WSU (11-7, 5-1) with 13 points. The Cougars played without their second-leading scorer, Lia Galdeira (18.6 points a game), who sat out due to soreness.

WSU shot 40.4 percent from the floor and Utah hit at 47.7 percent.