Doyle held St. Thomas Aquinas to one point in the third quarter to rally for a 50-44 win in District 10-2A action in Hammond on Friday.
The Lady Tigers (16-4, 2-0) trailed 25-21 at halftime but used a 15-1 run in the third quarter to take the lead.
STA closed the game with an 18-14 run.
Elise Jones led Doyle with 23 points, going 6-for-6 from the line in the fourth quarter and 9-for-11 for the game.
Presleigh Scott added 14 points, and Kylee Savant added seven, going 4-for-6 from the line. Doyle went 17-for-25 from the line in the game.
Jade Brumfield led STA with 24 points.