Polymarket market · Sports
Japan Women's Open: Mary Stoiana vs Moyuka Uchijima
Resolved: Mary Stoiana won · See it on Polymarket ↗
18 whales traded $104K on this market since Oct 22, 70% of their buying on Mary Stoiana. Copying their buys off the order book we recorded about 4 minutes later would have cost 5.9¢ less per share, with 100% of the size there to buy. Mary Stoiana won, with 70% of the whale buying on it. Of the 12 whales whose whole position we captured, 5 made +$27K and 7 lost −$23K: +$3.2K between them. Biggest win: Shabby-Postage, +$23K on Mary Stoiana. Biggest loss: Everlasting-Windchime, −$7.9K on Moyuka Uchijima.
The whales on this market
18 whales| Whale · record | Backed | Bought | Sold | Made on it |
|---|---|---|---|---|
| Shabby-Postage
22 settled bets Beat the odds* |
Mary Stoiana @ 68¢ | $49K | — | +$23K |
| Frightened-Subsidence
3 settled bets Too few bets |
sold only | $0 | $12K | — |
| Everlasting-Windchime
8 settled bets Too few bets |
Moyuka Uchijima @ 82¢ | $7.9K | — | −$7.9K |
| Quixotic-Brow
190 settled bets Can't tell from luck |
Moyuka Uchijima @ 60¢ | $4.8K | — | −$4.8K |
| Spotless-Niche
5 settled bets Too few bets |
Moyuka Uchijima @ 84¢ | $4.2K | — | −$4.2K |
| Wide-Swordfish-Latitude
61 settled bets Worse than the odds |
sold only | $0 | $4.1K | — |
| Thirsty-Detector
45 settled bets Too few bets |
Mary Stoiana @ 85¢ | $1.7K | $2.0K | +$280 |
| Pointless-Illustration
39 settled bets Can't tell from luck |
sold only | $0 | $2.7K | — |
| Each-Cenotaph
46 settled bets Can't tell from luck |
Moyuka Uchijima @ 42¢ | $2.1K | — | −$2.1K |
| Ripe-Apology-Pattypan
10 settled bets Can't tell from luck |
Moyuka Uchijima @ 49¢ | $2.1K | — | −$2.1K |
| Slow-Escape
365 settled bets Can't tell from luck |
Mary Stoiana @ 64¢ | $1.9K | — | +$1.1K |
| Meager-Flair-Wait
84 settled bets Worse than the odds |
Mary Stoiana @ 60¢ | $1.7K | — | +$1.2K |
| Healthy-Measurement
8 settled bets Too few bets |
sold only | $0 | $1.5K | — |
| Big-Perp
1 settled bets Too few bets |
sold only | $0 | $1.3K | — |
| Scary-Edible
1,516 settled bets Can't tell from luck |
Mary Stoiana @ 64¢ | $1.3K | — | +$712 |
| Brisk-Clockwork-Behalf
4,438 settled bets Can't tell from luck |
Moyuka Uchijima @ 60¢ | $1.2K | — | −$1.2K |
| All-Peasant-Drug
1,028 settled bets Worse than the odds |
Moyuka Uchijima @ 37¢ | $1.1K | — | −$1.1K |
| Admired-Doubter
126 settled bets Can't tell from luck |
sold only | $0 | $1.0K | — |
Where the whale money went
-
Mary Stoiana won$55K70% of whale buying · 5 buyers · $25K sold
-
Moyuka Uchijima lost$23K30% of whale buying · 7 buyers
From the whale trades we capture ($1,000+) on this market, Oct 22, 2026. Whether it resolved, and each whale's record, are from the daily run. “Made on it” is what each whale took out plus what its shares paid at the end ($1 for the winner, nothing for the rest), counting only trades we captured. A dash means it sold more than we saw it buy, so part of its position is missing and it's left out of the totals. How profit is counted.
Results and records from the run (1792652408).
More sports markets the whales bet on
All Sports →| Market | Whale money | Whales | Result | Last whale bet |
|---|---|---|---|---|
| Ningbo Open: Iva Jovic vs Jasmine Paolini | $156K | 21 | Open | |
| Almaty Open: Terence Atmane vs Mattia Bellucci | $51K | 14 | Open | |
| Kings vs. Clippers | $131K | 17 | Won: Clippers | |
| Warriors vs. Lakers | $223K | 29 | Won: Lakers | |
| Suns vs. Trail Blazers | $140K | 17 | Won: Trail Blazers | |
| Mavericks vs. Rockets | $101K | 11 | Won: Rockets | |
| Pacers vs. Pelicans | $121K | 23 | Won: Pacers | |
| Spread: Pacers (-3.5) | $51K | 7 | Won: Pelicans |
The bigger picture: Does copying Polymarket whales pay? · Do Polymarket whales make money?