Emma Boettcher, a 27-year-old librarian from Chicago, has unseated reigning “Jeopardy!” champion James Holzhauer after his month-long winning streak.

In a leaked video that’s gone viral on social media, Boettcher and Holzhauer are shown correctly answering “Who is Kit Marlow?” during Final Jeopardy, but it was her confident wager of $23,400, which brought her award total to $46,801, that cemented Holzhauer’s epic defeat.

The audience gasps as Trebek announces, “Oh gosh! What a payday. What a game!” In a show of good sportsmanship, Holzhauer crosses the podiums to give his winning opponent a high-five.

“I lost to a really top-level competitor,” says Holzhauer in an exclusive interview with The Times. “She played a perfect game. And that was what it took to beat me.”

Boettcher has been the user experience resident librarian at the University of Chicago since 2016, and previously attended the University of North Carolina-Chapel Hill, earning a master of science in information science.

Apparently a lifelong “Jeopardy!” fan, she told The Times she’s played along with the game show “religiously” for years, even fashioning her own buzzer and recording her scores. Going into the game, Boettcher says, she already knew the percentage of times she’s answered correctly each row on the “Jeopardy!” board, so she knew she could be confident when she made her Final Jeopardy bet. Her diligence paid off.

“I knew going in that Daily Double hunting was something that I could do and feel confident doing,” she says. “I don’t need to be cautious around that.”

Holzhauer ends his spectacular run with $2,464,216 after 32 consecutive wins, setting the record for largest take-home in one game with over $77,000. In a massive upset for his fans, Holzhauer has come short of besting legend Ken Jennings, who banked $2,520,700 over 74 wins in 2004.

Boettcher still has a long way before she makes a dent in Holzhauer’s massive winnings, but her LinkedIn reveals she might just have what it takes. The trivia whiz earned the Elfreda Chatman Research Award in 2015 for her master’s proposal, “What is Difficulty?: Estimating the Difficulty of Fact-Finding Questions Using the ‘Jeopardy’ Archive.”

“Nobody likes to lose,” says Holzhauer. “But I’m very proud of how I did, and I really exceeded my own expectations for the show. So I don’t feel bad about it.”

Tune in Monday at 7 p.m. on ABC to watch Holzhauer’s last game.