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
0.0000
across 25 resolved positions · lower is better
Skill vs own base rate
+100%
beating a trader who only knew how often they win
Calibration error
0.2pp
average gap between price paid and what happened
Win rate
92%
23 of 25 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%20%0%−0pp
90–100%23100%100%+0pp

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
$118
1 open position
Largest position
100%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$0
against $118 of open value

100% 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 $5 across 25 positions, with $0 of entry fees paid.

MarketPaidResultSizeP&L
Will New Zealand win the 2026 FIFA World Cup? — No0.9990won119$0
Will Jordan win the 2026 FIFA World Cup? — No0.9990won116$0
Will Egypt win the 2026 FIFA World Cup? — No0.9970won121$0
Will the Chicago Bulls win the 2026 NBA Finals? — No0.9970won118$0
Will the Sacramento Kings win the 2026 NBA Finals? — No0.9990won118$0
Will the Memphis Grizzlies win the 2026 NBA Finals? — No0.9960won122$0
Will the Utah Jazz win the 2026 NBA Finals? — No0.9980won121$0
Will there be no change in Fed interest rates after the June 2026 meeting? — Yes0.9980won117$0
Will Monaco win the 2025–26 Champions League? — No0.9970won114$0
Will Eintracht Frankfurt win the 2025–26 Champions League? — No0.9970won121$0
Will Union Saint-Gilloise win the 2025–26 Champions League? — No0.9990won123$0
Will Mallorca win the 2025–26 La Liga? — No0.9990won116$0
Will Bournemouth win the 2025–26 English Premier League? — No0.9985won241$0
Will Fulham win the 2025–26 English Premier League? — No0.9990won119$0
Will the Houston Texans win Super Bowl 2026? — No0.9890won122$1
U.S. strike on Somalia by February 7? — Yes0.0020lost431−$1
Will the price of Bitcoin be above $86,000 on January 19? — Yes0.9990won117$0
Will the price of Bitcoin be above $88,000 on January 10? — Yes0.9990won115$0
Will Ethereum hit $17,000 by December 31? — No0.9990won116$0
Will Superman be the top grossing movie of 2025? — Yes0.0020lost369−$1
Will Thunderbolts be the top grossing movie of 2025? — No0.9980won119$0
Will The Fantastic Four: First Steps be the top grossing movie of 2025? — No0.9980won121$0
Will Superman be the top grossing movie of 2025? — No0.9980won120$0
Will Trump say "Hell" 4+ times during Cabinet Meeting on December 2? — Yes0.9987won119$0
Will Curtis Sliwa win the 2025 NYC mayoral election? — No0.9990won123$0

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 →