Regardless, the junior ran wild through the Washington State secondary, catching 11 passes for 166 yards, including a spectacular 69-yard first-quarter touchdown where he left two Cougar defenders flatfooted in the open field.
Allen exploded for 123 yards on eight grabs in the first half, good for his first 100-yard game of the season and seventh of his career, as he continued his assault on the school record book. He now ranks second in career receptions (196), fourth in career receiving yards (2.466), seventh in touchdown receptions (16), and has caught a pass in all 31 career games, tied for the Pac-12 lead and eighth nationally.
His eight-yard catch early in the fourth quarter moved him past Dameane Douglas, who had 195 receptions between 199-98. Allen needs seven more to dethrone Geoff McArthur and set the new mark.
"It definitely means a lot," said Allen of those numerous career marks. "Just going out there getting a lot of catches, getting a lot of yards lets me know I'm in the right spots at the right time."
The game's other All-America caliber receiver, Marquess Wilson of Washington State, was knocked out of the game after taking a nasty helmet-to-helmet hit from safety Avery Sebastian in the end zone, drawing a personal foul with 11:01 left in the second quarter.
Wilson still finished with four receptions for 87 yards in just over a quarter's worth of action.
Sebastian also sidelined running back Teondray Caldwell late in the first quarter with another brutal hit along the WSU sideline.
With Marc Anthony sidelined with a bruised knee, sophomore cornerback Kameron Jackson made his first career start. But while Jackson starred last week with three interceptions against UCLA while tipping another pass that was picked off, it was the veteran Steve Williams who starred against the Washington State spread offense.
"I thought he played extremely well," Cal head coach Jeff Tedford said. "He was on an island out there playing one-on-one, ran with their guys, and made a lot of nice plays on the ball."
Williams, the redshirt junior, intercepted quarterback Connor Halliday in the back of the end zone, though it took video replay to make the call. He also broke up a career-high four passes, including a deep ball for a streaking Dominique Williams late in the third quarter, and had six tackles.
"I was just out there giving it my all," said Williams, who has a team-best three interceptions this season. "I knew the jumps on the routes, and I kept playing hard. Some of the stuff you got to play honest because you don't know what they are going to do when they pass the ball every play."
Between Halliday and his replacement Jeff Tuel, who entered the game 10 minutes into the first quarter after Halliday was picked off twice, Washington State attempted a whopping 63 passes and had 384 yards through the air.
"They just kept coming, and we kept fighting through adversity," said Williams, who admitted fatigue was a factor late as Washington State ran 81 total plays.
Running back C.J. Anderson was hit on his left knee on the final play of the first half and cramped up in the second half, but returned to action, finishing with a game-high 112 yards and two touchdowns on 15 carries.
Anthony did not play, but was able to go through pre-game warm-ups.
Defensive end Aaron Tipoti, who missed the last two games with a knee injury, returned to action and finished with two tackles.
Sebastian was shaken up blocking for Allen on a punt return late in the second quarter, but returned to the game, finishing with four tackles.
We're Going Streaking
Cal has now won eight consecutive games over Washington State, matching the longest streak in the series, as the Golden Bears claimed every meeting from 1920-1929.
Cal has now won back-to-back games for the first time since beating Washington State and Oregon State last November.
Vincenzo D'Amato has now connected on six straight field goals after hitting a career-long 52-yard kick in the third quarter.
"I don't know how much it made it by, but it was good," Tedford joked, before adding, "Our confidence in him never wavered."
Dan Greenspan is the publisher of Cal Sports Digest and writes about the Pac-12 for Fox Sports Next. Follow him on Twitter @DanGreenspan.