The Titans closed out the game on an 18-0 run to rally for the win at the Evergreen Holiday Tournament.
Kelso led 33-21 to start the fourth quarter after Union struggled to find its shot for the majority of the game.
“We played solid defense the entire game, but were very cold shooting through three quarters,” Union coach Gary Mills said. “In the fourth quarter we finally hit some shots and turned the tide.”
Abbey Kaip scored seven of her nine points in the last four minutes of the game to provide a spark. Mackenzie Lewis added 10 points for the Titans (8-4).