The Rebels topped Webb, 80.5-63.5, with Poly coming in third with 57 points.
The boys notched victories in the 1,600-meter relay, as the squad of Tyler Shum, James Bradley, Mike Defond and Jake Johnson claimed a win in 3 minutes, 34.96 seconds, while Gareth Weiss captured the pole vault with a mark of 12 feet 4 inches.
Perhaps the most exciting race took place when the foursome of Kyle Hamane, Stefan Smith, Henry Griffith and anchor Shum nipped rival Pasadena Poly by a thousandth of second as both teams tied with a 44.83.
"It was a tough race and we were fighting badly," said Shum, who was also a second-place qualifier in the 400 (53.99).
As a unit, the Rebels may have been most dominant in the boys' discus, in claiming three of the top five marks, including a victory from Daniel Jung, who hit a distance of 113-4.
Teammate West Nowotny was right behind with a qualifying toss of 112-09. Nowotny then notched his own victory in the shot put in 44-0 1/4.
Smith followed a similar script in winning the 200-meter dash in 23.39, which came after Smith qualified second in the long jump (19-03 1/2).
Sophomore Kate Evans proved one the Rebels' bigger standouts, as she first charged to a victory in the 1,600 in 5:18.30 seconds.
Evans ran among a trio of Mayfield runners through the first three laps in gaining a sizable lead before holding off Poly's Evan Gancedo (5:20.36) down the stretch.
"I definitely pushed in that third lap. That was my goal," Evans said. "I was terrified of the people behind, especially [Gancedo]. I was just waiting to hear her breathing, but it didn't happen."
In a flip shortly later, Evans finished runner-up (2:25.86) to Gancedo (2:22.55) in the 800 as both advanced to the divisional prelims.
Evans finished her day taking third in the 3,200 (12:01.75) and advancing to Carpinteria.
