Kramma
04

Performance audit

Am I good, and am I safe, answered for any Polymarket wallet from public data. No account, no API key, nothing to install.

Scoring a forecast requires knowing what someone believed before the outcome, which is why every other tool asks traders to log a probability against each position and then wait dozens of trades to learn anything. That step is unnecessary here. Every fill on Polymarket settles on Polygon with a price and a timestamp attached, so the record already exists: the price paid is the probability revealed.

Brier score
0.1662
across 20 resolved positions · lower is better
Skill vs own base rate
+31%
beating a trader who only knew how often they win
Calibration error
14.2pp
average gap between price paid and what happened
Win rate
60%
12 of 20 paid out

Am I good

Each row is a band of entry prices. Paid is the average price actually paid, which is the probability the wallet revealed by buying. Happened is how often those positions paid out. A well-calibrated trader has the two columns tracking each other.

Entry bandPositionsPaidHappenedGap
0–10%64%17%+13pp
60–75%168%100%+32pp
75–90%584%80%−4pp
90–100%894%75%−19pp

A positive gap means the wallet was under-confident in that band, it won more often than the price it paid implied. Negative means over-confident.

Am I safe

Open exposure
$4.8K
15 open positions
Largest position
48%
share of open capital in one contract
Half the book
2
positions hold half the exposure
Unrealised
−$2.6K
against $4.8K of open value

The resolved record

Every settled position, rebuilt from on-chain fills. Realised −$3.5K across 20 positions, with $24 of entry fees paid.

MarketPaidResultSizeP&L
US-Iran Final Nuclear Deal by August 18, 2026? — Yes0.0020lost43,649−$87
US-Iran Final Nuclear Deal by August 13, 2026? — Yes0.0148lost31,132−$459
Kharg Island no longer under Iranian control by July 31? — Yes0.0174lost65,565−$1.1K
US-Iran Final Nuclear Deal by July 31, 2026? — Yes0.0180lost23,741−$426
Strait of Hormuz traffic returns to normal by July 31? — Yes0.0688lost33,000−$2.3K
Bitcoin Up or Down - July 12, 9:30PM-9:45PM ET — Down0.9500won5$0
Bitcoin Up or Down - July 11, 4:00PM-4:05PM ET — Up0.9200won5$0
Bitcoin Up or Down - July 11, 10:50AM-10:55AM ET — Down0.9473won5$0
Bitcoin Up or Down - July 11, 10:50AM-10:55AM ET — Up0.9203lost5−$5
Bitcoin Up or Down - July 11, 10:20AM-10:25AM ET — Up0.9900won5$0
Bitcoin Up or Down - July 11, 8:15AM-8:20AM ET — Down0.9400won5$0
Bitcoin Up or Down - July 10, 11:30AM-11:35AM ET — Down0.8900won6$1
US x Iran permanent peace deal by June 15, 2026? — Yes0.0900won1,000$910
Bitcoin Up or Down - May 25, 2:15PM-2:20PM ET — Up0.9000lost5−$5
Bitcoin Up or Down - May 25, 2:05PM-2:10PM ET — Up0.8700won6$1
Bitcoin Up or Down - May 25, 12:20PM-12:25PM ET — Up0.9500won5$0
Bitcoin Up or Down - May 25, 12:15PM-12:20PM ET — Up0.8600won6$1
Bitcoin Up or Down - May 25, 12:10PM-12:15PM ET — Up0.7900lost6−$5
Bitcoin Up or Down - May 25, 10:25AM-10:30AM ET — Up0.8000won6$1
Bitcoin Up or Down - May 25, 10:20AM-10:25AM ET — Up0.6800won7$2

Swipe the table sideways to see every column.

Polymarket only. Kalshi is a regulated exchange with a private database, its per-account endpoints require the account holder's own credentials, so there is no equivalent public record to read. Method →