SC Internacional vs. Santos FC: O/U 4.5
2 of 2 top Polymarket traders hold Under (100%) · Under at 81¢ · $5K held · ended Sep 6
⚖️
Neutral
Under
2
Under 100%
$5.1K
$-3.5K
54.9¢ → 81¢
+47% since entry · 2 traders
Research grade
NeutralUnder at 81%
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 2 top traders (100%)
Outcome Probabilities
Smart Money Breakdown by Outcome
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
VD VD721lsj4938Dk388 | Underavg 54.6¢ | $2.5K | $3.7K | $-2.5K | 55% 1777-1465 (3242) |
AM AmericaFirst1 | Underavg 55.9¢ | $998.99 | $1.4K | -$998.99 | 62% 2197-1343 (3540) |
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
81.0¢ price + 1.0¢ spread + 0.7¢ 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.