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Legendary Polymarket trader wins over $85 million in a single bet
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Legendary Polymarket trader wins over $85 million in a single bet

Explore the story of Theo, the trader who defied the odds and won over $85 million on Polymarket by betting on Trump's election. His bold intuition not only made him a legend but also showcased the power and accuracy of decentralized prediction markets.

Written by Gaston Cuny

Translated on December 12, 2025 at 22:07 by Gaston Cuny

Dark blue background with hooded man and white Polymarket logo.
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Who is Theo? The bettor who became a legend

Theo is a French trader who has managed to maintain his anonymity, presenting himself only under this pseudonym to protect his privacy and security. A former trader in the United States, he leveraged his experience in financial markets to accomplish what many considered impossible on Polymarket.

Far from being a simple lucky bettor, Theo demonstrated a methodical approach and unwavering conviction, going so far as to invest the majority of his liquid assets into this single bet. His motivation, in his own words, was not political but purely financial: “just to make money.”

How Did He Win Over $85 Million?

Theo’s strategy relied on in-depth analysis and questioning of traditional polls. Convinced that the pro-Trump “shy voter” effect was underestimated, he commissioned his own surveys in key states like Pennsylvania, Michigan, and Wisconsin. Using an innovative polling method called “neighbor polling,” he asked respondents who their neighbors were planning to vote for. The results revealed support for Donald Trump far greater than what conventional opinion polls suggested.

A photograph of Donald Trump in front of the United States flag

Armed with this information, and having already committed $30 million, Theo increased his stake to $80 million across 11 different crypto accounts on Polymarket. His audacious bet, placed against the grain of most analysts, ultimately earned him a profit of over $85 million, propelling him to the top of the platform’s biggest winners leaderboard.

What Was the Impact of This Colossal Win?

This record-breaking win had repercussions far beyond Theo’s portfolio. On Polymarket, it caused a shockwave, demonstrating that considerable sums could be won through sharp analysis and a fine understanding of market dynamics. The platform recorded a betting volume of $3.2 billion for this election alone, confirming its status as the leader in prediction markets.

However, this success also attracted regulatory attention. In France, the National Gaming Authority (ANJ) opened an investigation into Polymarket, considering that the platform was operating as an illegal gambling site on French territory. This case highlighted the gap between the rapid innovation of decentralized finance and existing regulatory frameworks.

Compared to the biggest betting wins in history, Theo’s profit ranks among the largest ever recorded for a single bet, rivaling the wins of sports betting legends like Billy Walters. However, the decentralized and transparent nature of Polymarket makes this win even more remarkable, as it is the result of data analysis rather than simple chance.

The Superiority of Decentralized Prediction Markets

Theo’s feat is a perfect illustration of the superiority of decentralized prediction markets like Polymarket over traditional forecasting methods. Unlike polls, which are often subject to bias, these markets operate on the principle of the “wisdom of crowds,” where each participant is financially incentivized to reveal what they believe to be the truth.

Polymarket logo in white on blue background

Share prices on Polymarket reflect in real time the probability of an event, aggregating millions of data points and opinions to form a prediction of formidable accuracy.

Blockchain technology guarantees the transparency and immutability of bets, while smart contracts automate payment execution, eliminating the need for a trusted third party. This decentralized architecture offers censorship resistance and global accessibility, major advantages over traditional betting platforms.

Gaston Cuny

Gaston Cuny

Gaston has been a writer for over 7 years and a passionate cryptocurrency enthusiast since 2020. He loves exploring the crypto ecosystem and is now dedicated to sharing his insights and discoveries through InvestX.

FAQ: Everything you need to know about Théo and Polymarket

What is Polymarket?

Polymarket is the world’s largest decentralized prediction market platform.

Who is Théo, the Polymarket trader?

Théo is the pseudonym of a French trader who made over $85 million on Polymarket.

How did Théo make money on Polymarket?

He bet $80 million on Donald Trump’s victory after conducting his own independent polls.

Are prediction markets reliable?

They are often more accurate than traditional polls because they are based on financial incentives.

Is Polymarket legal in the United States?

Polymarket is not legally accessible to U.S. residents. Following action by the Commodity Futures Trading Commission (CFTC), the platform restricts users based in the United States.

What is a decentralized prediction market?

It is a platform that allows users to bet on future events using blockchain technology.

What are the advantages of Polymarket?

Polymarket offers transparency, security, and highly accurate real-time predictions.

What was the total amount wagered on the election on Polymarket?

The total volume of bets on the election reached $3.2 billion on Polymarket.

Is Théo’s win the largest in betting history?

It is one of the largest winnings ever recorded for a single bet.

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