Smart money holds the underdog side
Most tracked traders hold YeXin Ma, while the market favors Rinko Matsuda (99%). 3 of 5 traders hold an outcome priced under 50%.
Historically, consensus on sides priced under 40¢ lost money after costs.

W50 Yokohama: Rinko Matsuda vs YeXin Ma
3 of 5 top Polymarket traders hold YeXin Ma (60%) · YeXin Ma at 1.0¢ · $162 held · ends Nov 19
⚠️
Avoid
YeXin Ma
5
YeXin Ma 60%
$161.84
$31.35
Research grade
AvoidYeXin Ma at 1%
Matches a pattern that lost clearly more than the plain consensus in our tests.
- Consensus side under 30¢Full year, out of sample: 0.05–0.30 lost −8.1 % a trade (n 11,568), under 0.20 −20.5 % (n 3,615). Oct 22 backtest: −29.5 % (n 1,625). The strongest effect in every test.
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
3 of 5 top traders (60%)Underdog side (market favors Rinko Matsuda 99%)3 hold an outcome priced under 50%5 small positions dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
38 38791873984189CTR<$100 | YeXin Maavg 32¢ | $42.41 | $73.36 | +$30.94 | 48% 1430-1573 (3003) |
FL Flaznorp<$100 | Rinko Matsudaavg 72.3¢ | $32.73 | $34.68 | +$1.96 | 51% 1925-1866 (3791) |
C4 0xc4fe...601fCTR<$100 | YeXin Maavg 59¢ | $21.53 | $26.82 | +$5.29 | — |
![]() RN1<$100 | Rinko Matsudaavg 33¢ | $30.44 | $26.57 | -$3.87 | 57% 4059-3079 (7138) |
1D 0x1d1d...f2dfCTR<$100 | YeXin Maavg 12.4¢ | $3.38 | $0.41 | -$2.97 | — |
Invested
$42.41
Value
$73.36
PnL
+$30.94
Record
48%
1430-1573 (3003)
Invested
$32.73
Value
$34.68
PnL
+$1.96
Record
51%
1925-1866 (3791)
Invested
$21.53
Value
$26.82
PnL
+$5.29
Record
—
RN1<$100Invested
$30.44
Value
$26.57
PnL
-$3.87
Record
57%
4059-3079 (7138)
Invested
$3.38
Value
$0.41
PnL
-$2.97
Record
—
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
1.0¢ price + 1.0¢ spread + 0.1¢ 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.