The pre-season Pro Supersport favourite ended his year with a long-awaited victory on Sunday, as Sebastien Tremblay won a red flag shortened battle over Torin Collins and Tomas Casas at Canadian Tire Motorsport Park.
Collins had wrapped up the title on Saturday with his sixth victory of the campaign after a last-corner pass on Tremblay, but the two picked up right where they left off in race two as they traded places eight times in the opening nine laps.
Three of those lead changes came on lap one alone, as Tremblay led off the long Andretti Straightaway before Collins went for a signature divebomb into turn ten, this time predicted by Tremblay as he cut back underneath to seize first once again.
They would go back-and-forth a lap later in turns eight and nine, headlining a five-rider pack with Casas pacing Andrew Van Winkle and Elliot Vieira behind. Collins would lead for a pair of laps before Tremblay got back out front on lap six, this time fending off any immediate comeback attempts from the new champion.
The trio of Tremblay, Collins, and Casas would begin to stretch away from the rest of the field at the halfway point, though their dramatic showdown was spoiled as a red flag stoppage for Laurent Laliberte-Girard halted the race.
Laliberte-Girard thankfully avoided any serious injuries, but repairs to the safety barriers in turn eight meant the race would not be restarted.
It’s a bittersweet victory for Tremblay, who finally won his first race of the season after entering the year with the #1 plate aboard his S.T. Motorsport Suzuki, though he was hoping to see out his brewing battle with rivals Collins and Casas.
“I really wanted the full race. It would have been fun to go to the end and battle these guys, but I wanted to lead as many laps as possible and try to force them into mistakes,” Tremblay said. “It was such a fun weekend, and this Suzuki Canada machine was working so well, so I’m happy.”
While the entire podium shared their wishes that Laliberte-Girard was okay, the trio was collectively upset that they couldn’t battle it out to the end.
Collins surely would have had another attack on Tremblay waiting, though the Economy Lube Ducati rider was still all smiles to end his incredible 2025 season.
“It felt really good to wrap up the title yesterday, but I was really looking forward to this one today. It would have been so fun to battle with these guys to the finish,” Collins said. “Just the start of the race with Seb was so much fun. It’s been an awesome year, and I’m really excited for what the future’s going to bring.”
Collins’ status remains uncertain for 2026 as he continues to fight in the MotoAmerica Supersport class south of the border, though his first stint as a Ducati rider will end as a resounding success with 45 of a possible 50 points this weekend.
Casas on the other hand already turned his attention to next season, after a stellar debut with the new FAST Riding School Suzuki team continued with a third-place finish.
“Man, I’m going to leave this place hungry! I was trying to sit back and keep a bit in reserve for the end, so just I wish I had an opportunity to go for it,” Casas said. “I got to give a huge thanks to the FAST Riding School and Suzuki Canada for helping me get back out here, and I can’t wait to build this relationship and put it on the top step next year.”
Carving his way through the pack was former championship runner-up Mavrick Cyr, who earned the Canadian Motorcycle Hall of Fame Hard Charger award with an excellent ride to fourth on his S.T. Motorsport-supported Suzuki.
Cyr had a difficult start as he continued to adapt to his fourth different machine this season, but he may have been a factor in the win over a full race distance as he had begun to reel in the leaders prior to the red flag.
His late push came at the expense of Andrew Van Winkle, who couldn’t stay with the lead pack as he did for majority of Saturday’s race but still turned in a strong top-five result aboard his old-gen Mountainview Motorsports Suzuki.
Van Winkle will end the year second in the overall championship, just nine points clear of Tremblay in what was another strong season for the 18-year-old former Twins champion.
Battling with Van Winkle at the time of the stoppage was Elliot Vieira, who will finish fourth in the year end standings with a top-six finish in every single race aboard his GP Bikes Ducati, though he couldn’t continue his usual CTMP prowess this weekend.
Matt Simpson would salvage a strong seventh in just his second day aboard the Blackstock Motorsports Suzuki, having switched to the machine on Saturday morning with the help of fellow competitor Marco Sousa. Simpson battled with Cyr in the early going before fading to a lonelier position just behind the lead group at the time of the red flag.
Rob Massicotte would take another strong eighth to wrap up his season debut for the 88Moto Yamaha team, salvaging crucial Constructors Championship points for the brand though not enough to leapfrog Kawasaki for third overall behind champions Suzuki and runners-up Ducati.
Sousa would finish just narrowly behind in ninth on his Suzuki Canada machine, sandwiched in the middle of a close battle with Massicotte and Brad Macrae, the latter taking his best result of the year as he debuted the new Colron Excavating Yamaha R9.
Full results can be found here.
