CARLSBAD — The mentality between focusing on the final regular-season game and worrying about playoff seeding can be difficult, especially at the top. Third-ranked La Costa Canyon entered Thursday facing rival Torrey Pines, in the Beach Bowl, while also having the chance to win and share an Avocado West League title with Carlsbad. A four-minute drive resulting in a touchdown to end the first half combined with a 1-yard touchdown run from La Costa Canyon quarterback Quinn Roth to begin the third quarter fueled the Mavericks to a 31-20...
