
Spurs vs. Bulls: O/U 249.5
5 of 9 top Polymarket traders hold Under (56%) · Under at 57¢ · $3K held · ended Nov 12
⚠️
Avoid
Under
9
Under 56%
2 arb excluded
$2.8K
$18.42
57.3¢ → 57¢
-1% since entry · 5 traders
Research grade
AvoidUnder at 57%
Matches a pattern that lost clearly more than the plain consensus in our tests.
- BasketballFull year, out of sample: basketball lost −4.8 % a trade (n 1,747, 95 % CI −9.2 to +0.3); Oct 22 backtest: −12.0 % and −9.2 % in its two windows.
- 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.
- Consensus under 60 %Every backtest started at 60 %+ of the holders; below that nothing was measured.
- Side priced 50–60¢Full year, out of sample: 0.50–0.70 lost −2.9 % a trade (n 23,546, 95 % CI −3.9 to −1.9).
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
5 of 9 top traders (56%)2 arbitrage traders dimmed4 hold an outcome priced under 50%3 small positions dimmed (<$100 invested)
Outcome Probabilities
Smart Money Breakdown by Outcome
Signal Intelligence
Momentum
Flat
+0 pts consensus
Breadth
3 traders
Top 2 hold 95%
Freshness
Fresh
0h old
Flip Quality
Clean
0 consensus flips
33% of non-arb traders are on Under. Concentration is driven by the top two positions owning 95% of that side's value.
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
FL Flaznorp | Underavg 64.7¢ | $853 | $827.27 | -$25.72 | 51% 1925-1866 (3791) |
![]() RN1CTR | Overavg 45.8¢ | $386.86 | $418.17 | +$31.31 | 57% 4059-3079 (7138) |
VE Venusian | Underavg 50¢ | $333.76 | $347.11 | +$13.35 | 31% 411-924 (1335) |
65 6512395314597884CTR | Overavg 49.6¢ | $323.88 | $329.8 | +$5.92 | 50% 3301-3258 (6559) |
0X 0x228B8d11EBa89BF1c554f8879a9293B7106DaF4c-1765442354872CTR | Overavg 37¢ | $260.84 | $260.84 | -$0 | 55% 719-584 (1303) |
38 38791873984189ARB<$100 | Underavg 72.2¢ | $392.9 | $226.41 | -$71.91 | 48% 1430-1573 (3003) |
| └ Under leg | Underavg 72.2¢ | $227.46 | $159.09 | -$101.89 | |
| └ Over leg | Overavg 25.8¢ | $35.04 | $67.32 | +$29.98 | |
KE keeptheblueflagflyinghigh | Underavg 50¢ | $216.12 | $211.8 | -$4.32 | 53% 1852-1667 (3519) |
BI biying88888<$100 | Underavg 50¢ | $80 | $78.4 | -$1.6 | 37% 121-203 (324) |
PA Pan9XARB<$100 | Underavg 77¢ | $60.59 | $54.13 | -$1.46 | 49% 693-734 (1427) |
| └ Over leg | Overavg 31.8¢ | $21.32 | $33.84 | +$12.52 | |
| └ Under leg | Underavg 77¢ | $31.57 | $20.29 | -$13.98 | |
0X 0x9b11866433281ade9f2811dbde8acdefc45f5375<$100 | Underavg 61¢ | $4.69 | $4.73 | +$0.04 | 53% 290-259 (549) |
GH ghorrockCTR<$100 | Overavg 29.8¢ | $8.06 | $3.41 | -$0.55 | 55% 683-554 (1237) |
Invested
$853
Value
$827.27
PnL
-$25.72
Record
51%
1925-1866 (3791)
RN1CTRInvested
$386.86
Value
$418.17
PnL
+$31.31
Record
57%
4059-3079 (7138)
Invested
$333.76
Value
$347.11
PnL
+$13.35
Record
31%
411-924 (1335)
Invested
$323.88
Value
$329.8
PnL
+$5.92
Record
50%
3301-3258 (6559)
Invested
$260.84
Value
$260.84
PnL
-$0
Record
55%
719-584 (1303)
Invested
$392.9
Value
$226.41
PnL
-$71.91
Record
48%
1430-1573 (3003)
Both legs:
Invested
$216.12
Value
$211.8
PnL
-$4.32
Record
53%
1852-1667 (3519)
Invested
$80
Value
$78.4
PnL
-$1.6
Record
37%
121-203 (324)
Invested
$60.59
Value
$54.13
PnL
-$1.46
Record
49%
693-734 (1427)
Both legs:
Invested
$4.69
Value
$4.73
PnL
+$0.04
Record
53%
290-259 (549)
Invested
$8.06
Value
$3.41
PnL
-$0.55
Record
55%
683-554 (1237)
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
57.0¢ price + 1.0¢ spread + 1.2¢ 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.
Market Info
Traders in this Market
Flaznorp
Under — $827.27

RN1
CTROver — $418.17
Venusian
Under — $347.11
6512395314597884
CTROver — $329.8
0x228B8d11EBa89BF1c554f8879a9293B7106DaF4c-1765442354872
CTROver — $260.84
38791873984189
ARBArbitrage — excluded
keeptheblueflagflyinghigh
Under — $211.8
biying88888
Under — $78.4
Pan9X
ARBArbitrage — excluded
0x9b11866433281ade9f2811dbde8acdefc45f5375
Under — $4.73