Buchanan, behind tournament MVP Corinne DenHartog's 16 points, rallied from an 18-point first-half deficit to beat Clovis 56-52 for its first Old Town Clovis Kiwanis New Year's Classic championship.
The Cougars' Brianne Watson led all scorers with 22 points.
DenHartog had 16 points in Buchanan's 50-38 semifinal victory against Lemoore. Watson poured in 25 to help Clovis edge Edison 51-44 and reach the final.
Eriona Antunovich's 15 points paced Golden West's 52-25 romp over Mt. Whitney in a WYL opener.
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Darnell Johnson's 17 points helped Bullard to a 73-70 OT win vs. Centennial, despite 34 by the Hawks' Cody Kessler.
Marquise Wilson scored 19 points and Tulare opened East Yosemite League play with a 60-50 win against Cesar Chavez.
Mt. Whitney's Will Nelson had 18 points as the Pioneers beat Golden West 56-45 in a West Yosemite League opener.