LAS VEGAS -- Nathan Chen is out of podium position for the first time in almost four years.
The three-time reigning world figure skating champion -- and this season's Olympic gold-medal favorite -- was fourth Friday night after the men's short program at Skate America.
Chen has long been known as the "quad king," but he fell on his opening quadruple lutz and botched a quad flip combo later in the program.
Instead, American Vincent Zhou was in gold-medal position going into the free skate Saturday.
Olympian Zhou had 97.43 points to easily lead the 11-man field, followed by Olympic silver medalist Shoma Uno of Japan with 89.07 and American Jimmy Ma at 84.52. Ma has never finished higher than 10th at a Grand Prix.
With a score of 82.89, Chen is a surmountable 1.63 points away from the podium but nearly 15 points from first.
"I'm human, I get nervous, I feel fear," Chen said. "I get anxious before events, but that's normal."
He knows Skate America is not the end goal, though.
"I have a lot of events coming forward this season," Chen said. "This is not the one opportunity I have to perform the short program, so I'll prepare literally as much as I can and move forward."
Chen had a famously disastrous, in his words, short program at the 2018 Olympics. He rose from 17th to fifth with the winning free skate, showing he is capable of a comeback.
Since then, he has won every individual competition he has entered -- a whopping 14 events. Only twice in those 45 months was Chen not the leader after the short program; he was third.
Zhou is making a comeback of his own this week. The 2019 world bronze medalist was a dismal 25th at the 2021 world championships, one spot away from even qualifying for the free skate.
"I'm going to take this into tomorrow, build confidence and move forward," Zhou said. "I think I did a good job tonight in performing the program and showing some of the great things we've been doing in training."
He won two smaller events he entered earlier this season and is making a strong campaign for a second Olympic team. The team will be selected in January.
Earlier, two Russian pairs teams led the way.
Evgenia Tarasova and Vladimir Morozov had the top score in the pairs short program with 80.36 points, followed by compatriots Aleksandra Boikova and Dmitriy Kozlovskiy at 75.43. Riku Miura and Ryuichi Kihara of Japan were third at 72.63.
"The most important goal of the season is the Olympic Games," Kozlovskiy said. "Step by step, we have to move forward. This is our first step on our way."
The top three teams kicked off the first Grand Prix event of the Olympic figure skating season with clean skates, with the exception of the final element for both Russian pairs. Tarasova put her foot down on a throw triple loop while Boikova and Kozlovskiy's "Swan Lake" performance had a shaky throw triple flip.
With reigning world champions Anastasia Mishina and Aleksandr Galliamov not assigned to Skate America, the Russians are quickly proving they are favored to have at least one team on the Olympic podium in Beijing in 3½ months.
U.S. teams placed fourth, fifth and seventh on the first day of competition. Olympian Alexa Knierim and Brandon Frazier, who teamed up last year, were within four points of the podium. They won Skate America in 2020 when it was a mostly domestic competition due to the pandemic.