The Blue Springs South girls basketball team used strong defense to remain undefeated.

The Jaguars jumped to a 14-6 lead after one quarter and cruised to a 55-26 non-conference victory over host Park Hill South Monday night.

After leading 22-11 at halftime, the Jaguars pulled away with a 19-9 advantage in the third quarter.

Lauren Gillig fired in 19 points to lead the offense.

“We did some good things on defense,” Jaguars coach Kory Lower said. “I told the girls that was something we really needed to work on, and tonight we were pretty disciplined.

“Park Hill South makes you guard them for a long time, so you have to stay disciplined, and we did that and did a good job defending overall.”

Jaidynn Mason added 12 points and Elizabeth Ernsting had eight for the Jaguars (5-0).

OLATHE NORTHWEST 47, TRUMAN 33: After claiming the Gold Division title of the Winnetonka Tournament Friday, Truman struggled offensively Monday in a loss to Olathe (Kan.) Northwest in the first round of the De Soto (Kan.) Tournament.

The Patriots managed just one point in the second quarter and trailed 20-10 at halftime.

Deon Monroe scored 13 points and Taliyah Scott had nine to lead the Patriots (4-1).

STALEY 56, LEE’S SUMMIT NORTH 28: Lee’s Summit North struggled offensively in the first half in a non-conference loss to host Staley Monday.

The Broncos fell behind 17-2 after one quarter and 33-6 by halftime to fall to 1-4.

Mimi Brown scored nine points and Meleah Grayson and Halle Fee each added six.

STALEY 56, WILLIAM CHRISMAN 52: Staley outscored Chrisman 8-4 in overtime to top the Bears in the championship game of the Savannah Tournament Saturday.

Chrisman outscored the Falcons 19-5 in the second quarter to grab a 27-16 halftime lead. But Staley rallied to send it to overtime.

Jacque David, who made the all-tournament team, tallied 20 points, 10 rebounds and three assists to lead Chrisman (3-1). Jennifer David added 12 points, three rebounds and three assists, Gia Moore had nine points and two assists and Amanda Szopinski contributed five points and seven assists.

MARSHALL 42, GRAIN VALLEY 40: Grain Valley rallied from a deficit to take the lead in the fourth quarter but fell short in the end to the host school in the championship of the Marshall Tournament Friday.

Grace Slaughter poured in 29 points but it wasn’t enough as the Eagles (2-1) suffered their first loss.

“In the fourth quarter we were a lot different offensively,” Grain Valley coach Randy Draper said. “We played offense the way we needed to. It was a night and day difference, and these are things we need to learn.”

Malia Gutierrez added six points for the Eagles, who trailed 29-25 entering the final quarter.

VAN HORN 57, SUMNER 47: Van Horn used a balanced attack and a big fourth quarter to top Sumner of Kansas City, Kan., in the third-place game of the Van Horn Invitational.

Sumner outscored the Falcons (2-1) 13-4 in the third quarter to grab a 37-36 lead, but Van Horn used a 21-10 advantage in the final period to claim the win.

Daisy Washington scored 19 points, including 10 in the fourth quarter to help power the Falcons. Breannah Pace added 11, Lexi Robinson had 10 and Adison Smith chipped in eight.

Boys

VAN HORN 54, BARSTOW 53: Jaden Monday poured in 24 points to help Van Horn edge Barstow in the third-place game of the Van Horn Invitational Saturday.

The Falcons (2-2) held a 45-38 advantage entering the third quarter and held off Barstow in the final period.

Caleb Tanis added 13 points and Jeremy Paige had 11 points for Van Horn.