ST. HELENA, Calif. ? California's Billy Griffith won the biggest title of his young college career on Sunday when the Golden Bear sophomore defeated teammate Florian Lakat, 10-6, in the Porsche Napa Valley Tennis Classic singles final at the Meadowood Napa Valley Resort.

“It was an amazing feeling winning the tournament,” Griffith said.

Griffith's morning began with a 6-4, 6-1 win over Stanford's David Wilczynski to take group four with a 3-0 record. Lakat, a junior, beat George Goldhoff of Texas, 7-6(5), 6-2, to win group one with a 3-0 record.

A third Bear, Mads Engsted, also reached the singles playoff, dubbed the Solinco Wild-Card Shootout. The Cal senior lost his Sunday group seven match to USTA junior William Howells, 6-4, 6-0, to tie Stanford's Michael Genender with 2-1 group records. But Engsted had the tiebreaker, having beaten Genender, 6-3, 6-7(4), 7-6(5), earlier in the tournament.

In the shootout ? featuring the eight group winners ? Engsted lost in his first match, 10-3, to the Longhorns' Liam Caruana. Griffith defeated Baylor's Will Little, 10-7, in the quarterfinals and then rallied to knock off Caruana, 14-12, in the semifinals. Lakat beat the Michael Riechmann of Texas, 10-8, in the quarters and likewise had to rally against a Longhorn ? Harrison Scott ? in the semis to win, 11-9, and set up the Bear vs. Bear final.

“In my semis match, I saved about five match points and was pretty tired but just kept playing the next point and fighting,” Griffith said. “And then it's always hard playing a teammate, but at least we were playing in the finals, so Cal was guaranteed a win.”

As part of his victory, Griffith earned a wild-card entry into a USTA pro circuit tournament.

“It's definitely exciting earning a wild card into the futures, and I can't wait for the opportunity to compete against some great players. It was a great tournament here in Napa, and I had a lot of fun playing in it.”

Cal hosted the 15th annual tournament at Meadowood, whose director of tennis, Doug King, co-founded the tournament with Cal head coach Peter Wright.

“Just a fantastic performance from our entire team in Napa,” Wright said. “Billy and Florian made it to the finals with undefeated records. The Solinco USTA Wild-Card Shootout was incredibly exciting with both Florian and Billy facing match points against them in the semifinals. It's encouraging to see our team playing at such a high level this early in the season.”

TIBURON, Calif. ? Filip Bergevi was hoping to join fellow Cal junior Andre Goransson in the main draw of the $100,000 Wells Fargo Tiburon Challenger on Monday. But the Golden Bear lost to seventh-seeded Marcos Giron ? the 2014 NCAA champion for UCLA who's now a professional player ? 7-6(3), 6-1, in the qualifying round of 16 on Sunday to end his run at the Tiburon Peninsula Club.

Goransson will take on a qualifier to be determined in his opening match of the tournament on Monday.

Cal Results at the Porsche Napa Valley Tennis Classic

Sept. 27, 2015, in St. Helena, Calif.

Meadowood Napa Valley Resort

Round-Robin Singles

Alec Day (Princeton) def. Oskar Wikberg (Cal) ? 6-7(3), 6-2, 6-4

William Howells (USTA) def. Mads Engsted (Cal) ? 6-4, 6-0

Florian Lakat (Cal) def. George Goldhoff (Texas) ? 7-6(5), 6-2

J.T. Nishimura (Cal) def. Brian Shi (USTA) ? 6-3, 7-6(4)

Billy Griffith (Cal) def. David Wilczynski (Stanford) ? 6-4, 6-1

Solinco Wild-Card Shootout

Quarterfinals

Billy Griffith (Cal) def. Will Little (Baylor) ? 10-7

Florian Lakat (Cal) def. Michael Riechmann (Texas) ? 10-8

Liam Caruana (Texas) def. Mads Engsted (Cal) ? 10-3

Semifinals

Billy Griffith (Cal) def. Liam Caruana (Texas) ? 14-12

Florian Lakat (Cal) def. Harrison Scott (Texas) ? 11-9

Final

Billy Griffith (Cal) def. Florian Lakat (Cal) ? 10-6

Cal Results at the $100,000 Wells Fargo Tiburon Challenger

Sept. 27, 2015, in Tiburon, Calif.

Tiburon Peninsula Club

Qualifying Singles Round of 16

[7] Marcus Giron def. Filip Bergevi (Cal) ? 7-6(3), 6-1