Fulham FC vs. Crystal Palace FC: O/U 3.5
2 of 3 top Polymarket traders hold Under (67%) · Under at 80¢ · $378 held · ended Oct 28
⚖️
Neutral
Under
3
Under 67%
$377.68
-$31.14
85.8¢ → 80¢
-7% since entry · 2 traders
Research grade
NeutralUnder at 80%
No measured edge, which here means a loss: the plain consensus (5+ holders, 60 %+, held to resolution) lost −3.0 % a trade after costs out of sample in the full-year test (n 86,296, 95 % CI −3.6 to −2.4 %).
- Spread or totalOct 22 backtest: spreads and totals −14.5 % a trade in spring (95 % CI −27 to −1), +1.5 % in October: no edge.
- Fewer than 5 holdersEvery backtest needed 5+ holders; with fewer nothing was measured.
- Favourite (60–95¢)Full year, out of sample: 0.70–0.90 lost −0.9 % a trade (n 26,050, 95 % CI −1.5 to −0.3): the least bad band, still a loss. The Oct 22 backtest's +0.4 % (n 4,327) was not confirmed.
The rules come from our Oct 22 2026 backtest (one entry per market, held to resolution, after a 1¢ half-spread and Polymarket's taker fees). Our full-year test without hindsight (Oct 26 2026) found none of them profitable out of sample, and the plain consensus lost −3.0 % a trade. The grade describes the market; it is not a forecast, not an edge and not advice.
Smart Money Signal
2 of 3 top traders (67%)1 holds an outcome priced under 50%2 small positions dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
UP UpTheBlues | Underavg 87.2¢ | $325.34 | $298.63 | -$26.7 | 59% 44657-31054 (75711) |
FO foooool<$100 | Underavg 80.3¢ | $72.27 | $72.02 | -$0.25 | 50% 10545-10397 (20942) |
 VeryLucky888CTR<$100 | Overavg 34.5¢ | $27.4 | $7.03 | -$4.19 | 58% 40808-29511 (70319) |
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
80.0¢ price + 1.0¢ spread + 0.8¢ fee (Sports 5%). Win more often than this and the bet pays.
A market order pays the taker fee and crosses the spread (assumed 1.0¢); a limit order pays no fee but may not fill. The fee category is a guess from the title.