Every time these two Oregon County neighbors get together, it always comes down to the wire and this particular evening was no different, as the two squads battled back-and-forth for the whole game.
But in the end, the Lady Indians used a fast start in overtime to edge past Thayer 56-53.
Later, in boys' action, the Bobcats topped the Indians 51-36.
In the girls' clash, Couch held a 44-41 lead with just under two minutes left in regulation.
But Emily Eckman (10 points) hit two big free throws, followed by an old-fashioned 3-point play from Jordan Alford (12 points) that wiped out the Lady Indians' lead and pushed Thayer in front 46-44 with 1:49 left on the clock.
The next time down court, Calee Risner (10 points) hit a bucket down low to square things at 46-all.
The Lady Cats ran the last minute off the clock before attempting a 15-footer at the buzzer that was off target, sending the teams to overtime knotted at 46-all.
The Lady Indians did not waste any time in the extra four-minute period.
Risner started OT off with a hoop, followed by back-to-back jumpers from Lizzie Nessling that pushed Couch ahead 52-46.
Nessling led all scorers with a game-high 24 points.
Eckman scored Thayer's first basket of OT at the 2:29 mark, but Nessling responded with a deuce to keep the Lady Indians rolling.
A jumper from Alford and free throw from Elly Burrell (17 points) pulled Thayer within three points late, but that was as close as the Lady Cats could get, with the Lady Indians holding on for the 56-53 OT victory.
Couch led 14-11 after one and held that cushion for most of the second period before Thayer made a late move.
Closing the first half on an 8-0 run, fueled by hoops from Alford, Laken Martin (six points), Molly Honeycutt (four points) and Burrell, the Lady Bobcats slid in front 26-22 at intermission.
Back-to-back jumpers from Taylor Emberton (eight points) opened the third and tied the game at 26-all.
Midway through the third, Couch pulled ahead by three and maintained that lead, 38-35, heading into the fourth.
Cassie Roberts finished with eight points for Couch, while Emilee Risner had four and Taylor Beal two.
Meshila Mullins tallied four points for Thayer.
In the boys' game, Thayer climbed into the driver's seat late in the first period and stayed in front the remainder of the contest.
Hoops from Cody Lee (15 points) and Jesse Janes (eight points) gave the Indians a 4-2 lead early, but Thayer ripped off the next seven points to move in front 9-4 at the end of one.
Dylan Dennis (16 points) hit a trey during the Cats' burst, followed by a jumper and charity toss by Levi Hargrove (11 points).
Thayer used buckets by Hargrove, Dennis and Ricky Smith (13 points) early in the second to build its lead to 15-4.
Couch made a charge late in the second, as a pair of hoops from Colten Hicks (eight points), along with a jumper by Josh Foster, closed a 6-2 run for the Indians.
The Bobcats led 21-14 at the break.
The wheels came off of the Indians' comeback in the third, as Thayer opened the frame on an 11-0 run to grab a 32-14 lead.
Couch could manage just six points in the third and trailed 36-20 after three.
The Bobcats hits just one field goal in the fourth, but did knock down 13 free throws to cap their 51-36 victory over the Indians.
Jacob Foley and Brandon Childers finished with four points each for Thayer, while Jacob Alford had three.
Brent King tallied three points for the Indians.