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
0.0264
across 6 resolved positions · lower is better
Skill vs own base rate
+88%
beating a trader who only knew how often they win
Calibration error
14.5pp
average gap between price paid and what happened
Win rate
33%
2 of 6 paid out

Only 6 resolved positions. Below about 8 these scores are noise rather than signal: a couple of lucky or unlucky resolutions move them entirely. Treat everything here as provisional.

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%14%0%−4pp
10–25%318%0%−18pp
75–90%176%100%+24pp
90–100%194%100%+6pp

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
$281.9K
12 open positions
Largest position
49%
share of open capital in one contract
Half the book
2
positions hold half the exposure
Unrealised
$50.1K
against $281.9K of open value

The resolved record

Every settled position, rebuilt from on-chain fills. Realised −$111.4K across 6 positions, with $6.4K of entry fees paid.

MarketPaidResultSizeP&L
Fed Rate Hike by July 2026 Meeting? — Yes0.1495lost26,232−$3.9K
Will the Fed increase interest rates by 25 bps after the July 2026 meeting? — Yes0.2058lost474,216−$97.6K
Will there be no change in Fed interest rates after the July 2026 meeting? — No0.1771lost55,644−$9.9K
Will there be no change in Fed interest rates after the July 2026 meeting? — Yes0.7600won9$2
Will the Fed decrease interest rates by 25 bps after the July 2026 meeting? — Yes0.0365lost4,027−$147
Will Microstrategy announce a Bitcoin purchase June 2-8? — Yes0.9400won1,898$114

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 →