
Pistons vs. 76ers: O/U 225.5
3 of 5 top Polymarket traders hold Under (60%) · Under at 94¢ · $644 held · ended Oct 25
⚠️
Avoid
Under
5
Under 60%
1 arb excluded
$643.77
$28.51
44.7¢ → 93.5¢
+109% since entry · 3 traders
Research grade
AvoidUnder at 94%
Matches a pattern that lost clearly more than the trading costs in the backtests.
- BasketballBasketball lost in both windows: −12.0 % a trade in spring (95 % CI −22 to −2), −9.2 % in October.
- Spread or totalSpreads and totals: −14.5 % a trade in spring (95 % CI −27 to −1), +1.5 % in October: no edge.
- Favourite (60–95¢)0.70–0.90 was about break-even after costs, +0.4 % a trade (n 4,327); 0.60–0.95 with 70 %+ and $10k+ +2.9 % (n 955). The consensus beats its price by 2–3 points here, about what the costs take.
Backtest of Oct 22 2026: one entry per market, held to resolution, after a 1¢ half-spread and Polymarket's taker fees. The grade never goes above “Research candidate”: no rule passed the multiple-testing check. It is not a forecast and not advice.
Smart Money Signal
3 of 5 top traders (60%)1 arbitrage trader dimmed2 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 99%
Freshness
Fresh
0h old
Flip Quality
Clean
0 consensus flips
60% of non-arb traders are on Under. Concentration is driven by the top two positions owning 99% of that side's value.
| Trader | Position | Invested | Value | PnL | Record |
|---|---|---|---|---|---|
KE keeptheblueflagflyinghighARB<$100 | Overavg 50¢ | $302.99 | $367.07 | -$75.29 | 46% 328-382 (710) |
| └ Over leg | Overavg 50¢ | $248.87 | $258.82 | -$129.41 | |
| └ Under leg | Underavg 52¢ | $117.27 | $108.25 | +$54.12 | |
![]() RN1 | Underavg 42¢ | $105 | $130 | -$10 | 55% 46138-38317 (84455) |
![]() HRTrading | Underavg 50.1¢ | $62.83 | $111.75 | +$48.92 | 56% 1895-1497 (3392) |
AN Anon455CTR<$100 | Overavg 51¢ | $19.74 | $20.13 | -$10.45 | 56% 2130-1695 (3825) |
LE LeLynxMalynxCTR<$100 | Overavg 55¢ | $12.18 | $12.44 | +$0.24 | 55% 15069-12329 (27398) |
RL RLWG<$100 | Underavg 52¢ | $2.59 | $2.39 | -$0.2 | 51% 4438-4219 (8657) |
Invested
$302.99
Value
$367.07
PnL
-$75.29
Record
46%
328-382 (710)
Both legs:
RN1Invested
$105
Value
$130
PnL
-$10
Record
55%
46138-38317 (84455)
HRTradingInvested
$62.83
Value
$111.75
PnL
+$48.92
Record
56%
1895-1497 (3392)
Invested
$19.74
Value
$20.13
PnL
-$10.45
Record
56%
2130-1695 (3825)
Invested
$12.18
Value
$12.44
PnL
+$0.24
Record
55%
15069-12329 (27398)
Invested
$2.59
Value
$2.39
PnL
-$0.2
Record
51%
4438-4219 (8657)
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EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
93.5¢ price + 1.0¢ spread + 0.3¢ 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.