Newcastle beat Penrith 32-14 earlier in the day.
Roosters coach Trent Robinson hailed Pearce's performance after he bore the brunt of fan disappointment following New South Wales' defeat in the third and deciding Origin match on Wednesday.
"We talked about the spotlight he put on himself on Wednesday night. Obviously, he came up a bit short for New South Wales, and he was under it again and he came out and performed," Robinson said. "You can't create those qualities. You can improve skills and stuff, but not those qualities."
Cronulla was missing New South Wales captain Paul Gallen and backrower Luke Lewis, but coach Shane Flanagan refused to make that an excuse for his team's toughest loss of the season.
"We didn't have any player making his debut," Flanagan said. "We had 17 players out there and for me they were 17 first graders. So that's not an excuse."
Canberra kept an opponent scoreless for the first time in four years and posted its 12th straight win at home in beating Parramatta 14-0.
Captain Terry Campese helped set up the Raiders first two tries in a match played in treacherous conditions after hail, sleet and rain swept Canberra Stadium.
The Warriors trailed 14-6 at halftime, but an outstanding second-half performance from stand-off Shaun Johnson steered the club to victory. Johnson scored the Warriors' first half try and then opened up the Wests' defense and found captain Simon Mannering with a well-placed kick for the match-winning try.
"Shaun's second-half performance, in particular, was really pivotal," Warriors coach Matt Elliott said. "He's starting to learn that the more responsibility he takes on, the better he plays."