Also in Region 1 of 1A, the CO-U girls suffered a 79-53 loss to Westwood, Sloan at Sloan.
Westwood Sloan, the 13th-ranked team in Class 1A, ended CO-U’s season for the second straight year on Tuesday night with its 26-point triumph at home.
CO-U, which beat Whiting in its postseason opener last Thursday, saw its season end at 11-12 overall under head coach Derek Dougherty.
Westwood, going to 17-6 overall, got a double-double performance from sophomore Andee Martin, who poured in 20 points and handed out 10 assists.
The No. 13 Rebels will now take on unrated Akron-Westfield in a regional semifinal game tonight (Friday) at Akron.
The winner will play for a state tournament berth on Monday night against either No. 3 Exira/EH-K or Boyer Valley in the Region 1 final at Mapleton.
CO-U got out to a 21-20 first-quarter lead, but then Westwood outscored the Lady Bobcats 19-12 in the second to take a 39-32 lead into the break.
It was all Westwood in the second half, as the Rebels doubled up CO-U over the final 16 minutes by a 40-20 margin, including 26-8 in the third quarter alone that put the hosts up 65-40 to start the fourth.
Caylie Boyle led three CO-U girls in double figures with a double-double effort of 18 points and 13 boards to go with three assists.
Casey Carstens added 15 points, nine boards and three assists, while Tori Nuzum had 15 points, four boards, three assists and two steals.
Taya Thomas also had three points and three assists for the Lady Bobcats.
"We came out really strong and played great defensively the whole first half. We seemed to run out of gas in the second half. It hurts to end not only the season, but the era of Lady Bobcat girls’ basketball," commented Dougherty.
Carstens, Nuzum and Thomas were the team’s three seniors.
"Carstens turned herself into one of the best post players around this year and has been our biggest vocal leader," Dougherty said.
Carstens ends her career as one of only four players in school history to record 500 points and 500 rebounds.
"Nuzum is one of the most competitive kids I’ve ever coached in any sport. It was great to see her bounce back after an injury shortened her junior year and have an outstanding senior season," Dougherty said.
Nuzum ended her career in the school’s top five in scoring, assists, steals and free throw percentage.
"Thomas was a quiet leader for us. She led by example letting her play and hustle show it. She was a very unselfish player," Dougherty remarked.
Thomas will leave third all-time in assists, trailing only Kala and Kami Kuhlmann.
Tuesday’s game also was the final high school basketball contest for CO-U, as the school will enter into a whole-grade sharing agreement at the high school level with Maple Valley/Anthon-Oto at the start of the 2017-18 school year.