Walker held off a fourth-quarter charge from St. Amant to pick up a 60-57 win over St. Amant in a Class 5A regional playoff game Monday at Walker.
The No. 3 Lady Cats host the winner of Tuesday's game between No. 11 H.L. Bourgeois and No. 6 Captain Shreve in the quarterfinals.
Walker led 49-43 going into the fourth quarter before St. Amant closed with a 14-11 run as the Lady Cats went 3-for-10 from the line.
Caitlin Travis led Walker with 24 points, 15 of which came in the first half and the Lady Cats led 27-26.
Five players scored for Walker in the third quarter during a 22-17 run.
Lanie Miller added 12 points and Aneace Scott 10 for Walker.
Amani Gray led St. Amant, which went 14-for-17 from the line, with 20 points.