The pair of No. 1 singles get together during the offseason to train and push each other.
Nava said the results have almost always been even. The same hasn't held true for their high school matchups.
Cabrera got the best of Nava a season ago sweeping him in their freshman campaigns.
Nava returned the favor on Thursday morning, completing a season sweep of Cabrera with a 6-1, 6-3 victory in the Central California Conference singles tournament championship.
"With the two of us, it just comes down to who plays better that day," Nava said. "He broke me in that first game and I knew I had to step up my game.
"I started moving him around the court and forcing him to make some mistakes."
Nava ran off six straight games to win the first set and then opened the second set with a 3-0 lead.
Cabrera fought back, getting within 4-3. Nava won the last two games to close out the match and secure his first CCC crown.
It was the start of a very solid day for the Cougars as the tandem of Thomas Becker and Adrian Garcia reached the double tournament finals. Turlock's Jordan Bean and Aldair Lima won the title 6-1, 7-5, but all finalists will advance to the Sac-Joaquin Section Individual Tournament on May 2.
Buhach Colony 219, Atwater 273
ATWATER Colton Freitas paced the Thunder with a 41 and Emie Ochoa added a 42 in a win over the Falcons.
Paul Ramos led Atwater with a 43.
Le Grand 17, Ripon Christian 1
LE GRAND Cassandra Casanova doubled twice, tripled, drove in five runs and tossed a complete game two-hitter for the Bulldogs (10-2 SL).
Marissa Belmontes went 3 for 4 with a double and drove in three as Le Grand ended a two-game losing skid.
LOS ANGELES Connor Greene opened the 2013 CCCAA Swimming and Diving Championships in dream fashion, breaking his second Merced College record in as many weeks.
Greene took sixth in the 200-yard IM with a time of 1:55.08. That was good enough to break Brett Frey's 1984 mark by one hundredth of a second.
Ryan Randall (500 freestyle) and the Blue Devils' 200 free relay team didn't make the finals.
The state meet continues today and runs through Saturday.