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
0.0013
across 28 resolved positions · lower is better
Skill vs own base rate
+96%
beating a trader who only knew how often they win
Calibration error
2.3pp
average gap between price paid and what happened
Win rate
96%
27 of 28 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
10–25%111%0%−11pp
75–90%190%100%+10pp
90–100%2698%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
$1.3K
1 open position
Largest position
100%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$7
against $1.3K 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 $108 across 28 positions, with $3 of entry fees paid.

MarketPaidResultSizeP&L
Will the Fed decrease interest rates by 50+ bps after the July 2026 meeting? — No0.9960won1,282$5
Bitcoin Up or Down - June 28, 11:35PM-11:40PM ET — Up0.1119lost447−$50
Will the Fed increase interest rates by 50+ bps after the June 2026 meeting? — No0.9970won1,379$4
Bank of Japan decreases interest rates after the April 2026 meeting? — No0.9940won1,377$8
Bank of Japan decreases interest rates after March 2026 meeting? — No0.9930won807$6
Will the Fed decrease interest rates by 50+ bps after the March 2026 meeting? — No0.9890won562$6
Fed decreases interest rates by 50+ bps after January 2026 meeting? — No0.9939won1,357$8
Will Shigeru Ishiba be the first leader out in 2025? — Yes0.9760won306$7
Will Bitcoin reach $1,000,000 by December 31, 2025? — No0.9850won355$5
Pump.fun >$4B market cap (FDV) one day after launch? — Yes0.9950won161$1
Will the Government shutdown end November 12-15? — Yes0.9930won151$1
Will Monad perform an airdrop by October 31? — No0.9730won182$5
Fed increases interest rates by 25+ bps after October 2025 meeting? — No0.9930won302$2
Will ANO win the most seats in the next Czech parliamentary election? — Yes0.9650won206$7
Fed decreases interest rates by 50+ bps after September 2025 meeting? — No0.9860won183$3
Fed decreases interest rates by 50+ bps after July 2025 meeting? — No0.9830won143$2
Will Iran close the Strait of Hormuz before July? — No0.9910won112$1
US military action against Iran before July? — Yes0.9990won188$0
No change in Fed interest rates after May 2025 meeting? — Yes0.9200won145$12
Will Union win the most seats in the next German election? — Yes0.9000won218$22
Will Donald Trump be inaugurated? — Yes0.9860won241$3
Will China invade Taiwan in 2024? — No0.9784won660$14
Will Bitcoin hit $250k in 2024? — No0.9746won376$10
Will the US confirm that aliens exist in 2024? — No0.9800won367$7
Will Max Verstappen win the 2024 F1 season? — Yes0.9728won377$10
Will another candidate win the 2024 Romanian Presidential election? — Yes0.9580won162$7
Will Bitcoin hit $100k by Sunday? — No0.9990won124$0
Bitcoin above $90,000 on November 22? — Yes0.9940won124$1

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 →