flatbarrel: is this Polymarket wallet worth copying?
Copyable Rejected
Liquid markets, entries we can follow, edge across categories. Reservation: margin on volume -2.7% below floor.
- Trades, 30 days
- 359 135 resolved · 38% of them
- Win rate
- 54% on resolved markets
- Margin on volume
- -3% $3835.83 on $39585.38 traded
- Copyability
- 62 liquidity, spread, post-fill drift
Where flatbarrel actually wins
Best category: Sports. Match winners, spreads and totals. The deepest books on Polymarket and the fastest settlement, which makes sports the easiest category to copy on paper — and the one where fills matter most.
| Category | Score | Markets | Win rate | P&L |
|---|---|---|---|---|
| Sports | 25 | 359 | 54% | −$2123.14 |
Could you have copied these trades?
Typical entry about 6 days before resolution. Average fill size $221.73; average spread paid 3.0¢; average book liquidity $8765.55. Profit is spread across markets rather than one lucky call.
How the desk's view changed
- 2026-10-01: On the watchlist → Rejected — margin on volume -2.7% below floor
Follow flatbarrel on paper, at your size
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Open the desk ↗ How the verdict is computed