A Chinese PhD student forgot to turn off screen sharing on GitHub before a lab meeting—and it stayed bright for 11 seconds.

The supervisor immediately saw a repo name: polymarket-sports-arbitrage (sports arbitrage).
The supervisor didn’t report him, just asked:
“What’s your wallet address?”
Address:
That wallet is now public.
Profit: $2.67 million
Total number of transactions: 2,911
All sports books—NFL, the Premier League, Ligue 1, too.
The account was created in January 2026, less than a year ago.
A few big bets inside are especially interesting:
· $824k bet that Paris Saint-Germain wouldn’t win; the final payout was $2.28 million.
· $1.13 million bet on the Bills vs the Jaguars; the final withdrawal was $2.45 million.
· $781k bet on the Packers vs the Bears; they collected $1.79 million.
They’re all million-dollar-level wagers—and this person usually lives in a school dorm, rides a bike to class. It really does sound like a爽文.
But the logic behind him isn’t that mystical.
This bot doesn’t predict games.
It watches—Asian bookmakers’ odds.
Asian lines typically react 2 to 3 hours faster than Polymarket. The reason is simple: time zones. Asia opens first, processes information first, and adjusts odds first. By the time traders on the US side wake up, the lines on Polymarket might not move yet.
Not through any neural network, not insider info, and not superpowers.
It’s just the time lag.
While the US market is still asleep, Asia has already gone through the first wave of volatility. What he has to do is simply buy on Polymarket the odds that “haven’t had time to move yet,” then wait as they slowly catch up.
This isn’t gambling—it’s playing the lag across markets.
His GitHub README now has 127 stars, and his last line is ruthless:
“The market doesn’t know which time zone you’re in, but you know which time zone the market is in.”
The supervisor wanted to invest, but he refused. The reason was also straightforward—once the capital gets large, the arbitrage space gets quickly compressed. The pool is limited; the bigger you are, the faster it gets filled.
Now that wallet is being watched by 223k people, and there are still $214k on the inside.
The awkwardness on the day of the meeting was awkward—yet the wallet was quiet, with no noticeable reaction.
The story sounds like a legend, but the real edge is actually very plain:
Not smarter,
not more aggressive,
but earlier.
If you want to use copy-trading on Polymarket, you can use this:

#Polymarket