Kentucky shot 7 of 13 from the field and outscored Louisville 13-3 in the extra period.
Louisville's Merissah Russell's layup tied it 58-all with 26 seconds left in regulation. On the ensuing possession, Ja’Leah Williams blocked Amoore's 3-point attempt at the buzzer to force overtime.
Amoore shot 7 of 17 from the field and made three 3s to go with nine assists. Key was 7-of-12 shooting and grabbed nine rebounds.
Dazia Lawrence scored 14 points for Kentucky (4-0). Clara Strack added 12 points and nine rebounds. Amelia Hassett chipped in nine points and grabbed 13 rebounds.
Imari Berry scored 14 points and made four of the Cardinals' six 3-pointers. Tajianna Roberts added 12 points for Louisville (2-2).
Williams scored eight of her nine points in the first half and the Cardinals led 30-27 at the break. Berry's 3-pointer stretched the lead to 46-39 with 1:08 left in the third.