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
0.0506
across 41 resolved positions · lower is better
Skill vs own base rate
+53%
beating a trader who only knew how often they win
Calibration error
4.6pp
average gap between price paid and what happened
Win rate
88%
36 of 41 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
25–40%332%0%−32pp
40–60%353%67%+14pp
90–100%3599%97%−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
$90
6 open positions
Largest position
88%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$1
against $90 of open value

88% 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 $3 across 41 positions, with $0 of entry fees paid.

MarketPaidResultSizeP&L
Will Kevin Warsh be confirmed as Fed Chair? — Yes0.9420won2$0
Will NVIDIA be the largest company in the world by market cap on July 31? — Yes0.9300won3$0
Will Kylian Mbappe be the top goalscorer at the 2026 FIFA World Cup? — Yes0.4400won7$4
Will France win the 2026 FIFA World Cup? — Yes0.3740lost13−$5
Will Luis Diaz be the top goalscorer at the 2026 FIFA World Cup? — No0.9900won1$0
Will Sweden win the 2026 FIFA World Cup? — No0.9945won181$1
Will Senegal win the 2026 FIFA World Cup? — No0.9930won98$1
Will the US confirm that aliens exist by June 30? — No0.9910won1$0
Will the Cleveland Cavaliers win the 2026 NBA Finals? — No0.9800won2$0
Will the Philadelphia 76ers win the 2026 NBA Finals? — No0.9950won181$1
Will the Memphis Grizzlies win the 2026 NBA Finals? — No0.9990won82$0
Will the Charlotte Hornets win the 2026 NBA Finals? — No0.9910won71$1
Will the Golden State Warriors win the 2026 NBA Finals? — No0.9930won78$1
Will the Fed decrease interest rates by 25 bps after the June 2026 meeting? — No0.9870won2$0
Trump announces US x Iran ceasefire over by June 15? — No0.9750won1$0
Will Ricardo Belmont win the 2026 Peruvian presidential election? — No0.9990won91$0
Will Randy Feenstra win the 2026 Iowa Governor Republican primary election? — Yes0.9500lost2−$2
Will Sporting win the 2025–26 Champions League? — No0.9910won92$1
Will MrBeast's next video get between 25 and 30 million views on day 1? — No0.9770won1$0
Will Alaves win the 2025–26 La Liga? — No0.9990won85$0
Will Elche win the 2025–26 La Liga? — No0.9990won85$0
Will Betis win the 2025–26 La Liga? — No0.9980won85$0
Will Atletico Madrid win the 2025–26 La Liga? — No0.9980won86$0
Will Celta Vigo win the 2025–26 La Liga? — No0.9990won87$0
Will Manchester United win the 2025–26 English Premier League? — No0.9970won83$0
Will Aston Villa win the 2025–26 English Premier League? — No0.9990won84$0
Will Finland win Eurovision 2026? — Yes0.3460lost6−$2
US x Iran permanent peace deal by May 15, 2026? — No0.9400won1$0
Will Elon Musk post 120-139 tweets from April 28 to May 5, 2026? — No0.9840won2$0
Will the price of Bitcoin be between $74,000 and $76,000 on May 4? — No0.9950won1$0
Will WTI Crude Oil (WTI) hit (HIGH) $200 in April? — No0.9919won190$2
US x Iran diplomatic meeting by April 15, 2026? — No0.9920won2$0
Will NVIDIA be the largest company in the world by market cap on April 30? — Yes0.9760won1$0
Will Scottie Scheffler win the 2026 Masters tournament? — Yes0.2500lost9−$2
Will the next Prime Minister of Hungary be Péter Magyar? — Yes0.5700won5$2
UFC Fight Night: Renato Moicano vs. Chris Duncan (Lightweight, Main Card) — Chris Duncan0.5800lost3−$1
Will Alabama win the 2026 NCAA Tournament? — No0.9940won99$1
Will Balendra “Balen” Shah be the next Prime Minister of Nepal? — Yes0.9870won1$0
Will OpenAI have the best AI model at the end of February 2026? — No0.9894won88$1
Will xAI have the best AI model at the end of February 2026? — No0.9970won88$0
Will Norway win the most gold medals in the 2026 Winter Olympics? — Yes0.9860won30$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 →