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
0.0822
across 13 resolved positions · lower is better
Skill vs own base rate
+37%
beating a trader who only knew how often they win
Calibration error
17.9pp
average gap between price paid and what happened
Win rate
15%
2 of 13 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%45%0%−5pp
10–25%519%0%−19pp
25–40%127%0%−27pp
40–60%145%100%+55pp
60–75%268%50%−18pp

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
$845
4 open positions
Largest position
53%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$65
against $845 of open value

53% of open capital sits in a single contract. A binary settles to one dollar or to nothing, so concentration here is not a question of style: a single adverse resolution takes that share of the book with it.

The resolved record

Every settled position, rebuilt from on-chain fills. Realised −$1.9K across 13 positions, with $9 of entry fees paid.

MarketPaidResultSizeP&L
Khamenei out as Supreme Leader of Iran by June 30? — No0.6400lost781−$500
Will Trump create a tariff dividend by March 31? — Yes0.2484lost1,208−$300
Will the US next strike Iran on January 26, 2026 (ET)? — Yes0.0324lost309−$10
Will the US next strike Iran on January 25, 2026 (ET)? — Yes0.0842lost356−$30
Will the US next strike Iran on January 24, 2026 (ET)? — Yes0.1085lost276−$30
Khamenei out as Supreme Leader of Iran by January 31? — Yes0.2000lost1,000−$200
Ukraine election held by December 31, 2025? — No0.4511won1,108$608
Matt Gaetz confirmed as Attorney General? — Yes0.2700lost1,852−$500
Pakistan military strike on India by Friday? — No0.0539lost1,855−$100
Trump ends Ukraine war in first 90 days? — No0.7200won694$194
Will South Korean President lift martial law today? — No0.0114lost1,760−$20
Biden drops out of presidential race? — No0.1900lost2,105−$400
Will Kamala Harris win the 2024 US Presidential Election? — Yes0.2152lost3,000−$646

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 →