Who bet on "US Open ATP: Brandon Nakashima vs Alex Michelsen" — Polymarket whale activity
3 whale wallets moved $107K through this market in the 30 days to 2026-09-02, across 4 trades of $10,000 or more. 82% of their buy volume went to Alex Michelsen, at a volume-weighted entry of 54¢. The market last traded Alex Michelsen at 99.9¢.
- $107K
- whale volume
- 3
- whale wallets
- 4
- fills ≥ $10K
- 68%
- top wallet share
where the whale money went
Alex Michelsen
2 wallets bought at an average of 54¢
last traded 99.9¢ on 2026-09-02
Brandon Nakashima
1 wallet bought at an average of 66¢
last traded 0.1¢ on 2026-09-02
how to read this
One wallet drives this market: 0x983e…6748 accounts for 68% of all whale buy volume ($72K). That makes this one desk's position rather than a crowd view — the concentration is the story, and it means a single actor's change of mind would move the whole picture.
Between those entries and the last print the market moved 46 cents toward the side whales bought. That is the distance between two observed prices, not a profit: we do not know which of these wallets are still holding.
The market has since converged — Alex Michelsen last traded at 99.9¢ on 2026-09-02 — so this page is a record of how large wallets positioned while the question was still open.
biggest whale fills (4)
| date | wallet | side | outcome | size | price |
|---|---|---|---|---|---|
| 2026-09-02 | 0x983e…6748 | BUY | Alex Michelsen | $36K | 54¢ |
| 2026-09-02 | 0x983e…6748 | BUY | Alex Michelsen | $36K | 55¢ |
| 2026-09-02 | 0xf255…dce1 | BUY | Brandon Nakashima | $20K | 66¢ |
| 2026-09-02 | 0x8a86…4998 | BUY | Alex Michelsen | $15K | 55¢ |
Each wallet links to its transaction on Polygonscan — every number on this page is checkable against the chain.
markets with similar flow
This market is one of 300 markets we track whale flow on; the week's biggest moves across all of them are on the whale index.
Whether this kind of flow actually predicts outcomes is a separate question, and we tested it on hundreds of resolved markets — read the backtest. The short version: whale flow confirms, it does not forecast.
Not financial advice · on-chain data, may be delayed · snapshot of 2026-09-07 · below our data bar, excluded from search indexing
Free tier covers the whale endpoints used on this page.