For three quarters, the Tigers hung close. But No. 9-ranked Curtis pulled away late in the first round of the bi-district tournament.
Battle Ground led 30-28 at halftime and ended to third quarter on a 11-4 run to pull even at 41.
But Curtis opened the fourth quarter on an 11-3 run, then held the lead by making foul shots down the stretch.
Vincent McCormic scored 12 to lead Battle Ground (14-8), which is scheduled to face Auburn in the consolation round.
Zack Paulsen scored 30 to lead Curtis (17-4).
CURTIS 63, BATTLE GROUND 56
BATTLE GROUND — Jaiden Linville, KeAndre Hunter-Holliday 5, Vincent McCormic 12, Colin Barton 6, Nathan Millspaugh 9, Brendan Beall 9, Kaden Perry 9, Lukas Karlsson, David Reed 6. Totals 22 (5) 7-13 56.
CURTIS — Bryce Parker 0, Zack Paulsen 30, Dylan Yager, Jared Franklin 10, Jordan Parker 6, Solomon McGinnis, Chakari Tindal, Marco Zambolin, Maceo Lewis 0, Josiah Miller 0, Grayson Loupas, Isaac Morrow 16. Totals 23 (5) 12-22 63.
B.Ground 13 17 11 15–56
Curtis 10 18 13 22–63