Canada's three-time world champ Patrick Chan had a disastrous night, falling from second place to finish fourth.

Skating to Jeff Buckley's "Hallelujah," the 26-year-old Chan fell on his opening quad jump, and his program unravelled from there. He downgraded four jumps, and touched a hand down on two, en route to finishing with 245.70 points.

"It's important to realize that I've never had a skate like that in a big event," Chan said. "I think it's part of the process and having ownership of your career, and being successful you've got to have days like this.

The Canadian three-time world and six-time Skate Canada International champion fell from second place to finish in fourth place 0:28

"Yeah it sucks, but I've had the great highs too."

Japan's Shoma Uno won gold with 301.10, while American Jason Brown was second with 261.14, and Russia's Alexander Samarin won bronze with 250.06.

Uno scored 301.10 total points to claim the men's title at Skate Canada International 0:30

Duhamel, Radford back on track

Meagan Duhamel and Eric Radford climbed from second after the short program to win the pairs.

Skating to a selection of songs by Muse, Duhamel and Radford landed their huge throw quadruple Salchow on the way to 222.22 total points.

Germany's Aliiona Savchenko and Bruno Massot won silver (215.66), while Vanessa James and Morgan Cipres of France captured bronze (214.37).

"Everybody knows the struggles that we went through last year...there were times we wondered if we could ever deliver again like we did tonight," Duhamel said. "And I'm sure many people wondered if we could do that too. it's like we had this little string of hope left in us as we came into this season."

The Canadian pair topped the podium with a score of 222.22 points. 0:29

Duhamel, from Lively, Ont., and Radford, from Balmertown, Ont., won back-to-back world titles in 2015 and '16, but are coming off a rocky season that saw them third at the Grand Prix Final and then seventh — Radford was skating with a herniated disc in his back — at the worlds last spring.

"In the last month...it's like a laser beam, and this is how we used to feel," Radford said. "And I felt it again today, and I think that's what we needed."

Added Duhamel: "It feels like the old Meagan and Eric."

Osmond's back on top

​It took five backbreaking years for Kaetlyn Osmond to climb back on top of the podium at Skate Canada International.

But her perseverance has paid off.

The 21-year-old from Marystown, N.L., won the women's singles title Saturday to kick of the Olympic season, bringing the Brandt Centre crowd to its feet with her skate to the stirring "Black Swan." Osmond stumbled out of a triple toe loop then fell on a double Axel late in the program, but scored 212.91 for the victory.

"It's a great starting point, score-wise I'm where I was at the Grand Prix Final last [December], so I'm a couple of months ahead this year, and hopefully it will keep growing," said Osmond, who took a huge seven-point lead into the long program.

The 21-year-old Marystown, N.L. native overcame two falls to win her second career Skate Canada International title 0:30

Russia's Maria Sotskova scored 192.52 for second, while American Ashley Wagner, who was seventh after the short program, climbed up to bronze with 183.94.

Osmond blamed butterflies for her botched triple flip, triple toe loop combination. She nearly hit the boards on the toe loop, touching a hand down to save herself from falling.

"Just sometimes when I'm nervous I'll push a little harder," she said. "The flip actually took off really big and it covered a lot more distance than I was expecting I guess. So when I landed the toe, the boards were pretty close."

And she moved the Axel to the end of her program this season because jumps in the second half, when the body's fatigued, are worth higher marks. In practice, she'll do a runthrough of her program, and the immediately do the double Axel, "to get used to doing it when I'm tired."

Long road back

Osmond was just 16 when she launched herself into the international spotlight by winning Skate Canada in 2012 in Windsor, Ont. But the years that followed were fraught with injuries, including the broken leg that required two surgeries to repair that shelved her 2014-15 season, and left her doubting whether she'd ever skate again.

A hamstring injury forced her to withdraw after the short program in 2013, and in 2015 in her first major competition back from her broken leg, she fell into the full splits in the short program, injuring her hip flexor and groin. She struggled to an 11th-place finish.

Eric Radford, left, and Meagan Duhamel were one of three victories on the day for Canada. (Paul Chiasson/Canadian Press)

She capped her arduous comeback with a silver at the world championships last spring, and positioned herself as a medal threat at the PyeongChang Olympics.

"It's really great, I'm mostly just really happy with how I skated, but to continue my results from last year, it means a lot to me," Osmond said. "I remember the last Olympic year, Skate Canada [2013] did not go well for me at all. I didn't even make it to the long program. So thinking four years ago to that, and being here and skating two strong programs, it means a lot to me. I feel a lot stronger."