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
0.0135
across 36 resolved positions · lower is better
Skill vs own base rate
+74%
beating a trader who only knew how often they win
Calibration error
3.4pp
average gap between price paid and what happened
Win rate
94%
34 of 36 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
40–60%252%100%+48pp
75–90%182%100%+18pp
90–100%31100%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
$211
1 open position
Largest position
100%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$1
against $211 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 $1.4K across 36 positions, with $0 of entry fees paid.

MarketPaidResultSizeP&L
Will the Carolina Panthers win Super Bowl 2026? — No0.9990won108$0
Will Brad Lander win the 2025 NYC mayoral election? — No0.9990won11$0
Will DeepSeek have the best AI model on October 31? — No0.9990won96$0
Will the Atlanta Hawks win the 2025 NBA Finals? — No0.9990won5$0
Will Lee Jun-seok be elected the next president of South Korea? — No0.9970won3$0
Bournemouth wins the Premier League? — No0.9990won5$0
Brentford wins the Premier League? — No0.9990won3$0
Will the Bengals win Super Bowl 2025? — No0.9940won516$3
Will the Bears win Super Bowl 2025? — No0.9950won517$3
Will the Cowboys win Super Bowl 2025? — No0.9960won517$2
Will the Colts win Super Bowl 2025? — No0.9960won518$2
Will the Saints win Super Bowl 2025? — No0.9960won519$2
Will the Jets win Super Bowl 2025? — No0.9960won521$2
Will the Panthers win Super Bowl 2025? — No0.9970won521$2
Will the Browns win Super Bowl 2025? — No0.9970won522$2
Will the Titans win Super Bowl 2025? — No0.9970won523$2
Will the Patriots win Super Bowl 2025? — No0.9970won524$2
Will the Jaguars win Super Bowl 2025? — No0.9980won524$1
Will the Raiders win Super Bowl 2025? — No0.9980won525$1
Fact Check: Was it a rogue actor? — Yes0.9990won801$1
Will 'Furiosa: A Mad Max Saga' gross most in 2024? — No0.9990won101$0
Democrats and Republicans both lose the 2024 Presidential Election? — No0.9980won109$0
Will Joe Biden win the 2024 US Presidential Election? — Yes0.0010lost21,900−$22
Will Vivek Ramaswamy win the 2024 US Presidential Election? — Yes0.0010lost20,800−$21
Will any other Republican Politician win the 2024 US Presidential Election? — No0.9970won792$2
Will Donald Trump win the 2024 US Presidential Election? — Yes0.5170won1,536$742
Will RFK Jr. win the popular vote in the 2024 Presidential Election? — No0.9990won796$1
Will Nikki Haley win the 2024 US Presidential Election? — No0.9980won802$2
Will any other Democratic Politician win the 2024 US Presidential Election? — No0.9980won803$2
Will Kamala Harris win the 2024 US Presidential Election? — No0.5320won1,490$697
Will a candidate from another party win Pennsylvania Presidential Election? — No0.9970won801$2
Will a candidate from another party win Arizona Presidential Election? — No0.9970won798$2
No change in Fed interest rates after 2024 September meeting? — No0.9680won0$0
Fed increases interest rates by 25+ bps after September 2024 meeting? — No0.9990won799$1
Kamala Harris replaced as nominee at DNC? — No0.9980won748$1
Will Liverpool win the UEFA Champions League? — No0.8240won8$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 →