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
0.1476
across 54 resolved positions · lower is better
Skill vs own base rate
+29%
beating a trader who only knew how often they win
Calibration error
8.9pp
average gap between price paid and what happened
Win rate
30%
16 of 54 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%134%8%+4pp
10–25%1617%25%+8pp
25–40%1329%23%−6pp
40–60%547%20%−27pp
60–75%171%100%+29pp
75–90%385%100%+15pp
90–100%394%100%+6pp

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
$81
7 open positions
Largest position
62%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$44
against $81 of open value

62% 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 $355 across 54 positions, with $1 of entry fees paid.

MarketPaidResultSizeP&L
Will Portugal win the 2026 FIFA World Cup? — Yes0.0540lost200−$11
Will England win the 2026 FIFA World Cup? — Yes0.0720lost100−$7
Will Brazil win the 2026 FIFA World Cup? — Yes0.0669lost140−$9
Will Norway win the 2026 FIFA World Cup? — Yes0.0170lost300−$5
Will Panama win the 2026 FIFA World Cup? — Yes0.0030lost1,000−$3
Will Austria win the 2026 FIFA World Cup? — Yes0.0060lost300−$2
Will Paraguay win the 2026 FIFA World Cup? — Yes0.0050lost2,000−$10
Will Spain win on 2026-07-14? — Yes0.9500won90$5
Will Spain vs. Belgium end in a draw? — Yes0.3625lost15−$5
Will Argentina win on 2026-07-07? — Yes0.0400won100$96
Will PSG win the 2025–26 Champions League? — Yes0.1200won83$73
Will Sevilla FC win on 2026-05-04? — No0.1400lost10−$1
Will FC Bayern München win on 2026-05-02? — Yes0.5900lost25−$15
Will Bitcoin dip to $65,000 in April? — No0.1600won44$37
Will Club Atlético de Madrid vs. Arsenal FC end in a draw? — No0.2200lost15−$3
Will Cagliari Calcio win on 2026-04-27? — No0.2800lost12−$3
Will the price of Bitcoin be between $76,000 and $78,000 on April 21? — Yes0.4000lost9−$4
Will Manchester City FC win on 2026-04-19? — No0.2300lost11−$3
Will SS Lazio win on 2026-04-18? — Yes0.8300won49$8
Will Racing Club de Lens vs. Toulouse FC end in a draw? — Yes0.3500lost10−$3
Arizona Diamondbacks vs. Philadelphia Phillies — Philadelphia Phillies0.0900lost28−$3
Will FC Barcelona win on 2026-04-14? — No0.3200lost19−$6
Will the price of Bitcoin be between $72,000 and $74,000 on April 14? — Yes0.3200lost9−$3
Will RC Celta de Vigo win on 2026-04-12? — Yes0.0700lost27−$2
Will Real Betis Balompié win on 2026-04-12? — Yes0.2200lost22−$5
Will CA Osasuna win on 2026-04-12? — Yes0.3100lost15−$5
Will FC Bayern München win on 2026-04-11? — Yes0.8700won99$13
Will AFC Bournemouth win on 2026-04-11? — No0.4100lost12−$5
San Diego Padres vs. Boston Red Sox — Boston Red Sox0.2400lost20−$5
Will AS Roma win on 2026-04-10? — Yes0.8500won25$4
Will the price of Bitcoin be between $72,000 and $74,000 on April 10? — No0.0130lost66−$1
Will Nottingham Forest FC win on 2026-04-09? — Yes0.1100lost43−$5
Will FC Porto win on 2026-04-09? — Yes0.2500lost19−$5
Will Club Atlético de Madrid win on 2026-04-08? — Yes0.9300won27$2
Will Real Madrid CF win on 2026-04-07? — Yes0.0230lost205−$5
Will AC Milan win on 2026-04-06? — Yes0.2700lost18−$5
Will Deportivo Alavés win on 2026-04-05? — Yes0.2200lost22−$5
Will CA Osasuna win on 2026-04-05? — Yes0.2200lost22−$5
Will Getafe CF vs. Athletic Club end in a draw? — Yes0.2500lost19−$5
Will Real Madrid CF win on 2026-04-04? — Yes0.2800lost34−$10
Will Cagliari Calcio win on 2026-04-04? — Yes0.1677lost28−$5
Will US Sassuolo Calcio win on 2026-04-04? — Yes0.2200won22$17
Will Bitcoin dip to $60,000 in March? — Yes0.0644lost155−$10
Will Bosnia and Herzegovina vs. Italy end in a draw? — Yes0.3000won32$22
Will Germany win on 2026-03-30? — Yes0.4700won28$15
Will Switzerland win on 2026-03-27? — Yes0.1300lost38−$5
Will Germany win on 2026-03-27? — Yes0.2800won18$13
Will Uruguay win on 2026-03-27? — Yes0.1200lost83−$10
Will England win on 2026-03-27? — Yes0.4900lost20−$10
Will Valencia CF win on 2026-03-21? — Yes0.9300won172$12
Will FC Bayern München win on 2026-03-18? — Yes0.7100won11$3
Will Galatasaray SK win on 2026-03-18? — Yes0.1000lost100−$10
Will Venezuela win the 2026 World Baseball Classic? — Yes0.1660won211$176
Will RC Celta de Vigo win on 2026-03-12? — No0.2600won96$71

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 →