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
0.2053
across 47 resolved positions · lower is better
Skill vs own base rate
+15%
beating a trader who only knew how often they win
Calibration error
9.9pp
average gap between price paid and what happened
Win rate
60%
28 of 47 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%27%0%−7pp
10–25%520%40%+20pp
25–40%635%33%−2pp
40–60%1351%62%+10pp
60–75%965%78%+13pp
75–90%1181%73%−9pp
90–100%197%100%+3pp

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
$2.5K
2 open positions
Largest position
88%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
−$4.0K
against $2.5K 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 $23.5K across 47 positions, with $1.7K of entry fees paid.

MarketPaidResultSizeP&L
Will Olympique Lyonnais win on 2026-08-04? — Yes0.4418lost45,828−$20.2K
Will Aston Villa win on 2026-08-04? — Yes0.8299won5,361$912
Will Bayern Munich win on 2026-08-04? — Yes0.8600won14,657$2.1K
Will Spain vs. Argentina end in a draw? — Yes0.5317won43,317$20.3K
Spain vs. Argentina: 1st Half O/U 0.5 — Over0.6244lost21,827−$13.6K
Lionel Messi: 1+ goals — Yes0.3600lost10,000−$3.6K
Will Argentina win on 2026-07-15? — Yes0.3133won30,000$20.6K
Will Spain win on 2026-06-26? — Yes0.6000won63,000$25.2K
Will France win on 2026-06-26? — Yes0.8449won12,021$1.9K
Will Germany win on 2026-06-25? — Yes0.6604lost24,377−$16.1K
Will Bosnia and Herzegovina win on 2026-06-24? — Yes0.8128won10,830$2.0K
Will Switzerland vs. Canada end in a draw? — Yes0.3300lost5,000−$1.6K
Edin Džeko: 1+ goals — Yes0.4381lost12,794−$5.6K
Will England vs. Ghana end in a draw? — Yes0.5891won18,663$7.7K
England vs. Ghana: O/U 1.5 — Under0.5600won5,000$2.2K
England vs. Ghana: Draw at halftime? — Yes0.8000won5,030$1.0K
Will Ghana win on 2026-06-23? — Yes0.0500lost50,000−$2.5K
Will Croatia win on 2026-06-23? — Yes0.6600won5,000$1.7K
Norway vs. Senegal: O/U 2.5 — Over0.5200won5,000$2.4K
Erling Haaland: 1+ goals — Yes0.5200won7,500$3.6K
Erling Haaland: 2+ goals — Yes0.2100won4,000$3.2K
Will Norway win on 2026-06-22? — Yes0.4500won10,000$5.5K
Will Argentina win on 2026-06-22? — Yes0.7666won10,900$2.5K
Will Egypt win on 2026-06-21? — Yes0.6100won3,000$1.2K
Will Belgium vs. IR Iran end in a draw? — Yes0.5662won8,018$3.5K
Will Uruguay vs. Cabo Verde end in a draw? — Yes0.2300won5,000$3.9K
Will Germany win on 2026-06-20? — Yes0.6700won11,936$3.9K
Will Netherlands vs. Sweden end in a draw? — Yes0.1081lost5,000−$541
Will United States win on 2026-06-19? — Yes0.9700won3,500$105
United States vs. Australia: O/U 2.5 — Over0.4400lost1,500−$660
United States vs. Australia: Both Teams to Score — Yes0.5300lost5,000−$2.6K
United States vs. Australia: O/U 1.5 — Over0.7600won5,000$1.2K
Gio Reyna: 1+ goals — Yes0.2412lost5,002−$1.2K
Folarin Balogun: 1+ goals — Yes0.3991lost5,000−$2.0K
Christian Pulisic: 2+ shots — Yes0.0860lost1,213−$104
Will England win on 2026-06-17? — Yes0.5800won10,750$4.5K
Will France win on 2026-06-16? — Yes0.6700won5,000$1.6K
Will Spain win on 2026-06-15? — Yes0.8600lost27,500−$23.6K
UFC Freedom 250: Ciryl Gane vs. Alex Pereira (Heavyweight, Main Card) — Alex Pereira0.5100lost30,000−$15.3K
UFC Freedom 250: Michael Chandler vs. Mauricio Ruffy (Lightweight, Main Card) — Mauricio Ruffy0.8100won5,200$988
UFC Freedom 250: Aiemann Zahabi vs. Sean O'Malley (Bantamweight, Main Card) — Sean OMalley0.7900lost5,000−$4.0K
UFC Freedom 250: Kyle Daukaus vs. Bo Nickal (Middleweight, Main Card) — Bo Nickal0.7300won3,723$1.0K
UFC Freedom 250: Derrick Lewis vs. Josh Hokit (Heavyweight, Main Card) — Derrick Lewis0.2300lost15,000−$3.5K
Will Netherlands vs. Japan end in a draw? — Yes0.3300won10,000$6.7K
Will Ecuador win on 2026-06-14? — Yes0.3800lost5,000−$1.9K
Will Scotland win on 2026-06-13? — Yes0.6400won36,000$13.0K
Will Switzerland win on 2026-06-13? — Yes0.8200lost2,500−$2.0K

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 →