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
0.0001
across 14 resolved positions · lower is better
Skill vs own base rate
+100%
beating a trader who only knew how often they win
Calibration error
0.5pp
average gap between price paid and what happened
Win rate
86%
12 of 14 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%1299%100%+1pp

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
$111
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 $111 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 14 positions, with $0 of entry fees paid.

MarketPaidResultSizeP&L
Will Jordan win the 2026 FIFA World Cup? — No0.9990won107$0
Will Cabo Verde win on 2026-07-03? — No0.9630won106$4
Will the Brooklyn Nets win the 2026 NBA Finals? — No0.9966won318$1
Will the New Orleans Pelicans win the 2026 NBA Finals? — No0.9990won105$0
Will the Milwaukee Bucks win the 2026 NBA Finals? — No0.9970won109$0
Will the Utah Jazz win the 2026 NBA Finals? — No0.9970won108$0
Strait of Hormuz traffic returns to normal by end of June? — Yes0.0040lost353−$1
Will Benfica win the 2025–26 Champions League? — No0.9980won109$0
Will Everton win the 2025–26 English Premier League? — No0.9980won110$0
Will Nottm Forest win the 2025–26 English Premier League? — No0.9990won110$0
Will the Minnesota Vikings win Super Bowl 2026? — Yes0.0030lost324−$1
Maduro out in 2025? — No0.9940won104$1
Patriots vs. Jets — Patriots0.9990won104$0
Will Bitcoin reach $200,000 in November? — No0.9990won105$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 →