Then he apologized to the crowd.
The 22-year-old from Toronto won gold Friday to become the first men's singles skater in 13 years to win three in a row.
But when he stuck his toe pick in the ice and struck his final pose, his face fell in disappointment and he smacked a palm several times to his forehead.
Victory No. 3 was far from an easy one for Chan on a night few skaters in the men's field performed well, and 19-year-old Denis Ten of Kazakhstan stole the spotlight.
"I'm sorry I didn't give you a good program," Chan told the 6,600 fans that were on their feet regardless. "I wanted to do it so badly."
Ten captured the silver, while Javier Fernandez of Spain claimed the bronze.
Kevin Reynolds of Coquitlam, B.C., finished fifth.
Earlier in the day, Meagan Duhamel of Lively, Ont., and Eric Radford of Balmertown, Ont., won bronze in the pairs, Canada's first in that discipline in five years.
Thanks to a world-record short program, Chan took a huge seven-point lead into a free skate that was indicative of his topsy-turvy season — an error-filled four-and-half minutes to "La Boheme" that included a couple of falls and downgraded jumps.
"I definitely was disappointed in myself because I really wanted to go out there and have a short program moment," he said. "The moment wasn't as good as it could have been, but it was nonetheless very special."
Dressed in a V-neck white shirt under a blue vest, Chan opened with two huge quads and looked headed for certain victory. But he had uncharacteristic fall on a triple Lutz, a jump he could land in his sleep, then went splat on his triple Axel — the jump that's always been his nemesis — en route to 267.78 points.
"It is a two-program competition and I am thankful for the beautiful short program I did on Wednesday," he said. "I think today is just proof of figure skating is about an overall good week and I had a really good week."
The thought did cross Chan's mind near the end of the program that he might not win.
"I was really, really bummed, because I realized, 'Oh my gosh, it would be awful if I end on a bad note, because of all the mistakes I made.' I had to forget about it and refocus finishing the program strong. I was fighting it the whole time, I felt the program was going by really slowly.
"Count my stars, I'm pretty lucky."
Chan had hoped a strong performance in London would be the perfect springboard into the Sochi Olympic season. This season has been anything but strong, starting with a second-place performance at Skate Canada in the fall — his first loss in a major international event in almost two years. Then he finished third at the Grand Prix Final.
Three weeks before the world championships, he upped and moved from Colorado Springs to Detroit.
"I think this season I gained the most experience, second to probably Olympic Games in Vancouver because this whole season I've been trying to catch my feet, and trying to discover myself in a way, and why I was having such an odd time on the ice," he said. "I wasn't excited to compete or train or anything."
Chan decided to trust his instincts, he said, and take a leap of faith in moving to Detroit.
"I used to believe that competing was a matter of luck and hoping I would land on my feet. That's definitely not the case for me anymore," he said. "If I put in the work, I'll get the success that I want."
The 19-year-old Ten had the skate of the night, an entertaining and athletically impressive performance to "The Artist" en route to scoring 266.48 overall. He pumped his fist after landing his quad, then delighted the crowd afterward when he crouched on all fours and kissed the Budweiser Gardens ice afterward.
It was Kazakhstan's first world championship medal.
"My dream came true," Ten said. "I still cannot believe it happened. What's more important is it's the first medal for my country and I'm really proud of it."
There was obvious disappointment on Reynolds' face when the 22-year-old heard his scores. Reynolds, who sat third after the short program, landed two quads, one with a shaky landing, but downgraded a couple of other jumps.
"I felt a lot of pressure skating in the last position," said Reynolds, who was the last up on the night. "It's the first time for me, such a high-pressure situation. Considering all of that, I am pleased with my performance."
Duhamel and Radford made good on their vow to reach the podium a year after finishing fifth at last year's world championships.
"It's the most surreal unbelievable moment in our lives," Duhamel said. "It's something very special that we'll have with us forever, and for it to happen at home in Canada topped it all off."
Kirsten Moore-Towers of St. Catharines, Ont., and Dylan Moscovitch of Toronto narrowly missed claiming a medal, finishing fourth.
The Canadian team, which has never won a medal in all four disciplines at a world championships, will have a couple of potential podium finishes Saturday with ice dancers Tessa Virtue and Scott Moir and teenager Kaetlyn Osmond in women's singles.
Also on HuffPost