Triton Central never got its offense in gear Tuesday night in Decatur County and lost to North Decatur, 25-14, 25-16, 25-18.
Maddy Brown led Triton Central (17-8) with six kills and 11 digs.
Kayden Simmons and Kaitlin Bramlett each had four kills.
Kate Isley was credited with 15 assists and 10 digs.
North Decatur improved to 24-4 this season.
Triton Central travels to Greenfield-Central (9-16) Thursday.
In other prep volleyball matches Tuesday:
New Palestine def. Shelbyville, 25-13, 25-10, 25-8
At New Palestine, the host Dragons pushed their record to 22-4 overall and 5-1 in the Hoosier Heritage Conference standings with a straight-set win on Senior Night over the Golden Bears (5-21, 0-7 HHC).
Shelbyville closes out the regular season schedule Saturday at the Lawrence North Invitational.
Waldron def. Oldenburg Academy, 21-25, 25-19, 15-25, 26-24, 15-12
At Waldron, the Mohawks improved to 14-10 on Senior Night with a five-set win over the Twisters (10-14).
The Mohawks hosts Eastern Hancock (16-13) Thursday.
Greenwood Christian def. Southwestern, 25-14, 25-23, 25-17
At Southwestern, the visiting Cougars defeated the Spartans (8-19) in straight sets to spoil the Senior Night festivities.
Greenwood Christian also won the junior varsity match, 25-10, 25-16.
Southwestern opens the Shelby County Tournament Saturday at 10 a.m. against Triton Central in Fairland.
The second semifinal match follows between Morristown and Waldron.
The county championship match is slated for 12:30 p.m. at Triton Central High School.