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UFC 328: Grant Dawson vs. Mateusz Rebecki (Lightweight, Prelims)
Resolved: Grant Dawson
Flags
7
Net whale flow → Grant Dawson
+$249.7k
Grant Dawson 7d ago → now
—
Category
Sports
Live on this marketconnecting…
Loading the latest $10k+ trades from Polymarket…
Straight from Polymarket's public trade feed, refreshed every 10s while this tab is open. Grades appear after markets resolve. Information, not advice.
Who's on each side
Whale money on this market, split by track record. Proven wallets beat the price over 20+ graded bets; losing wallets clearly lost to it. Everyone else is unrated.
| Side | All whales | Proven | Losing |
|---|---|---|---|
| Grant Dawson | $318.9k 4 flags |
$11.1k 1 wallet |
none |
| Mateusz Rebecki | $45.2k 2 flags |
none | none |
| Not Grant Dawson | $24.0k 1 flag |
none | none |
A proven wallet on a side is a reason to look closer, not a verdict. Records come from past bets; see how to use this. Information, not advice.
Flags on this market
| Flag | Size | Result |
|---|---|---|
| LOW SELL Grant Dawson @ 99.9¢ | $24.0k | excluded |
| MED BUY Grant Dawson @ 58¢ | $191.1k | excluded |
| LOW BUY Mateusz Rebecki @ 42¢ | $11.6k | excluded |
| MED BUY Grant Dawson @ 58¢ | $33.9k | excluded |
| MED BUY Grant Dawson @ 58¢ | $82.7k | excluded |
| LOW BUY Grant Dawson @ 55¢ | $11.1k | called |
| LOW BUY Mateusz Rebecki @ 41¢ | $33.6k | missed |
Summary
WhaleGrader has logged 7 whale trades on this market totalling $388.1k from 5 wallets. The largest was $191.1k (buy Grant Dawson at 58¢). Most whale money ($318.9k) went to Grant Dawson. 4 of 7 graded flags here called the outcome. The biggest whale here, Sassy-Bucket ($307.7k), has called 4 of 12 graded flags overall (-16.2 pts vs price).
Market data from Polymarket (ufc-gra-mat13-2026-05-09).