Due to impending weather in the area Friday evening, the Southland Conference Tournament semifinal times have been moved up.
NSU (12-3-3) is playing Texas A&M-Commerce at 2 p.m.
Lamar and Houston Christian will play at 11 a.m. in the first match of the day.
The Lady Demons swept the regular season series, winning 4-1 in Commerce and 1-0 in Natchitoches.
The winner takes on the victor of Lamar and HCU on Sunday afternoon in the tournament title match.