The two teams were in the same pool two days later for the Shelbyville Relays.
The Lady Bulldogs placed fourth in the six-team field, while the boys were the same.
Five different school records were broken at the meet.
Cox, Emily Weiler and Elizabeth Weiler broke the mark for the 150 fly relay, which was set in 2004. The same trio set the new standard in the 400 medley relay.
There were three records set on the boys side.
Weiler, Joey Hutchison and Timonera bettered the school mark on the 150 fly relay. Hatcher, Seth Parker and Jacob Hawkins eclipsed a 2004 time in the 150 backstroke relay. Weiler, Timonera and Hatcher are the new record-holders in the 150 breaststroke relay.