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
0.0302
across 20 resolved positions · lower is better
Skill vs own base rate
+66%
beating a trader who only knew how often they win
Calibration error
6.8pp
average gap between price paid and what happened
Win rate
90%
18 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%13%0%−3pp
60–75%174%0%−74pp
75–90%287%100%+13pp
90–100%1698%100%+2pp

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
$69.9K
6 open positions
Largest position
82%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$3.4K
against $69.9K of open value

82% 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 $1.6K across 20 positions, with $0 of entry fees paid.

MarketPaidResultSizeP&L
GRVT FDV above $500M one day after launch? — No0.9600won335$13
Zama auction clearing price above $0.14? — No0.9990won2,551$3
Zama auction clearing price above $0.12? — No0.9990won4,152$4
Zama auction clearing price above $0.10? — No0.9990won5,108$5
Zama auction clearing price above $0.09? — No0.9990won2,551$3
Zama auction clearing price above $0.08? — No0.9990won2,772$3
Zama auction clearing price above $0.07? — No0.9990won3,045$3
Will WTI Crude Oil (WTI) hit (LOW) $85 in August? — Yes0.9490won2,000$102
Strait of Hormuz traffic returns to normal by August 15? — Yes0.0250lost3,115−$78
Israel x Iran ceasefire continues through August 2? — Yes0.9164won15,280$1.3K
Over $3M committed to the Hurupay public sale? — No0.9964won3,210$12
Indian Premier League: Kolkata Knight Riders vs Lucknow Super Giants — Kolkata Knight Riders0.7400lost984−$728
Will Bitcoin reach $76,000 on April 14? — Yes0.9800won79$2
Will the State of the Union be 130 minutes or longer? — No0.9990won164$0
Will the price of Bitcoin be above $64,000 on February 24? — Yes0.9800won28$1
Odds of US strikes Iran in February over 50% by Feb 13? — No0.8820won28$3
Will Elon Musk post 360-379 tweets from February 3 to February 10, 2026? — Yes0.8500won1,500$225
Will Ethereum dip to $2,600 January 26-1? — Yes0.9990won7,122$7
Over $50M committed to the Ranger public sale? — Yes0.9100won7,529$678
Lighter market cap (FDV) >$1B one day after launch? — Yes0.9980won28,081$56

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 →