With a mighty overhead smash and loud yell, Albany High's Andrew Gu made an emphatic finish to a remarkable two-year run to start his high school tennis career.

The final point was an exclamation mark in a 6-2, 6-3 win over Castro Valley's Miguel Diaz in the North Coast Section Division I boys singles final Saturday at Saint Mary's College, giving Gu his second NCS individual title in as many years.

Gu, a sophomore, admitted he didn't expect to win two straight championships to begin his prep career. Fresh off his victory on a hot, sunny day, Gu said it was harder to win the title in 2013 than it was in 2012.

"I could feel pressure because I had to defend my title," Gu said. "I wanted to win it again. It's big to me. I'm proud of it."

Gu and Diaz found a quick rhythm in the first set, exchanging many long rallies to start the match. The score was knotted at 2-2 through the first four games before Gu started dictating the tempo of the match with a strong serve.

He was also able to break Diaz's serve on consecutive occasions en route to winning four straight games to earn the 6-2 first-set victory.

The second set featured a similar storyline, as the two competitors were locked in a 3-3 tie through six games before Gu claimed three straight games to win the match.

"My serve was really working," Gu said.

In the NCS Division I boys doubles final, Redwood's duo of Parker Silverman and Dominic Barretto earned a 6-1, 7-5 victory over Miramonte's Andrew Tan and Peter Martin.

Baseball

Clayton Valley Charter 8, Buchanan-Clovis 2: The Eagles used strong pitching and timely hits to defeat Buchanan at the Dave Stewart High School Baseball Showdown at O.co Coliseum.

Austin Cannedy threw five strong innings in relief of starter Ryan Snyder.

"This was a big win for us to get ready for the playoffs," Cannedy said. "I think we came in a little intimidated at first playing on this field, but we settled in."

Clayton Valley (17-3) got a huge game from Josh Ballard, who went 2 for 3, including a double and triple to drive in four against Buchanan (23-4-1).

Bishop O'Dowd used four pitchers to blank Oakland Tech 6-0 in the opener. Kyle Lally allowed one hit in six innings as De La Salle defeated Edison of Fresno 9-1 in the final game.

-- Tony Gonsalez, correspondent