
Mavericks vs. Celtics: O/U 216.5
4 of 12 top Polymarket traders hold Over (33%) · Over at 55¢ · $6K held · ended Nov 15
⚠️
Avoid
Over
12
Over 33%
1 arb excluded
$5.6K
-$89.94
53.3¢ → 55¢
+3% since entry · 4 traders
Research grade
AvoidOver at 55%
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
4 of 12 top traders (33%)1 arbitrage trader dimmed8 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 |
|---|---|---|---|---|---|
![]() nigiri99 | Overavg 53¢ | $2.7K | $2.6K | -$25.73 | 51% 793-768 (1561) |
![]() VeryLucky888CTR | Underavg 47¢ | $1.1K | $935.67 | -$54.04 | 54% 2045-1764 (3809) |
HO HomeRunHazardARB<$100 | Underavg 47.9¢ | $780.91 | $769.25 | -$11.67 | 56% 3959-3128 (7087) |
| └ Under leg | Underavg 47.9¢ | $451.45 | $447.73 | -$3.71 | |
| └ Over leg | Overavg 53.8¢ | $329.47 | $321.51 | -$7.95 | |
0X 0x228B8d11EBa89BF1c554f8879a9293B7106DaF4c-1765442354872 | Overavg 54.9¢ | $443.46 | $452.35 | +$8.88 | 54% 2084-1743 (3827) |
GC GC-PCTR | Underavg 47¢ | $235 | $222.5 | -$12.5 | 43% 589-793 (1382) |
LI LimousinCTR | Underavg 46.3¢ | $198.24 | $188.34 | -$9.9 | 38% 1433-2333 (3766) |
VE VenusianCTR | Underavg 44¢ | $132.16 | $150.26 | +$18.1 | 38% 1462-2368 (3830) |
NM NM-PCTR | Underavg 47¢ | $125.48 | $118.8 | -$6.67 | 59% 3987-2766 (6753) |
JO JoeyAroyyOO<$100 | Overavg 52¢ | $83.2 | $74.4 | -$8.8 | 49% 136-144 (280) |
FL Flaznorp<$100 | Overavg 58¢ | $29.58 | $30.35 | +$0.77 | 48% 4844-5167 (10011) |
![]() 0xheavy888CTR<$100 | Underavg 45¢ | $4.62 | $4.72 | +$0.1 | 56% 710-561 (1271) |
MA MadridTimeCTR<$100 | Underavg 46¢ | $2.76 | $2.67 | -$0.09 | 38% 1445-2329 (3774) |
GH ghorrockCTR<$100 | Underavg 47¢ | $2.5 | $2.45 | -$0.05 | 53% 2407-2143 (4550) |
nigiri99Invested
$2,650.73
Value
$2.6K
PnL
-$25.73
Record
51%
793-768 (1561)
VeryLucky888CTRInvested
$1,105.82
Value
$935.67
PnL
-$54.04
Record
54%
2045-1764 (3809)
Invested
$780.91
Value
$769.25
PnL
-$11.67
Record
56%
3959-3128 (7087)
Both legs:
Invested
$443.46
Value
$452.35
PnL
+$8.88
Record
54%
2084-1743 (3827)
Invested
$235
Value
$222.5
PnL
-$12.5
Record
43%
589-793 (1382)
Invested
$198.24
Value
$188.34
PnL
-$9.9
Record
38%
1433-2333 (3766)
Invested
$132.16
Value
$150.26
PnL
+$18.1
Record
38%
1462-2368 (3830)
Invested
$125.48
Value
$118.8
PnL
-$6.67
Record
59%
3987-2766 (6753)
Invested
$83.2
Value
$74.4
PnL
-$8.8
Record
49%
136-144 (280)
Invested
$29.58
Value
$30.35
PnL
+$0.77
Record
48%
4844-5167 (10011)
0xheavy888CTR<$100Invested
$4.62
Value
$4.72
PnL
+$0.1
Record
56%
710-561 (1271)
Invested
$2.76
Value
$2.67
PnL
-$0.09
Record
38%
1445-2329 (3774)
Invested
$2.5
Value
$2.45
PnL
-$0.05
Record
53%
2407-2143 (4550)
Chat
EV Calculator
Consensus % is how many tracked traders hold a side, not a win probability.
55.0¢ 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

nigiri99
Over — $2.6K

VeryLucky888
CTRUnder — $935.67
HomeRunHazard
ARBArbitrage — excluded
0x228B8d11EBa89BF1c554f8879a9293B7106DaF4c-1765442354872
Over — $452.35
GC-P
CTRUnder — $222.5
Limousin
CTRUnder — $188.34
Venusian
CTRUnder — $150.26
NM-P
CTRUnder — $118.8
JoeyAroyyOO
Over — $74.4
Flaznorp
Over — $30.35