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
0.1113
across 28 resolved positions · lower is better
Skill vs own base rate
+55%
beating a trader who only knew how often they win
Calibration error
15.1pp
average gap between price paid and what happened
Win rate
50%
14 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
0–10%19%0%−9pp
10–25%915%0%−15pp
25–40%225%50%+25pp
40–60%350%33%−17pp
60–75%466%100%+34pp
75–90%782%86%+4pp
90–100%294%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
$10.4K
1 open position
Largest position
100%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
−$609
against $10.4K 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 $17.5K across 28 positions, with $0 of entry fees paid.

MarketPaidResultSizeP&L
Will FC Barcelona win on 2026-08-27? — Yes0.7500won184$46
Will Arsenal FC win on 2026-08-21? — No0.1700lost34−$6
UFC 330: Islam Makhachev vs. Ian Machado Garry (Welterweight, Main Card) — Islam Makhachev0.7600won204$49
UFC 330: Islam Makhachev vs. Ian Machado Garry (Welterweight, Main Card) — Ian Machado Garry0.2400lost83−$20
Will Spain win on 2026-07-06? — Yes0.5100won28,000$13.7K
Will Norway win on 2026-06-16? — No0.2000lost10,000−$2.0K
Will Manchester United FC win on 2026-05-17? — Yes0.6100won10$4
Suns vs. Hornets — Hornets0.6600won147$50
Heat vs. Cavaliers — Cavaliers0.5700lost3,727−$2.1K
Magic vs. Cavaliers — Cavaliers0.8100won12,000$2.3K
Grizzlies vs. Hawks — Hawks0.8800won9,000$1.1K
Wizards vs. Knicks — Knicks0.9750won2,872$72
Grizzlies vs. Hornets — Hornets0.9100won2,000$180
Cavaliers vs. Pelicans — Cavaliers0.6400won7,000$2.5K
Spurs vs. Clippers — Spurs0.7600won10,000$2.4K
Warriors vs. Wizards — Warriors0.7300won6,000$1.6K
Trail Blazers vs. 76ers — 76ers0.2500won1,411$1.1K
Jazz vs. Trail Blazers — Trail Blazers0.8900won4,500$495
Hornets vs. Trail Blazers — Trail Blazers0.4200lost340−$143
Pistons vs. Nets — Nets0.1098lost10,000−$1.1K
Wizards vs. Heat — Wizards0.1100lost5,000−$550
Nets vs. Pistons — Pistons0.8900lost195−$173
Nets vs. Heat — Nets0.1400lost5,054−$708
Rockets vs. Wizards — Wizards0.1100lost1,000−$110
Nuggets vs. Jazz — Jazz0.1600lost4,000−$640
76ers vs. Celtics — 76ers0.2500lost1,200−$300
Nets vs. Celtics — Nets0.0900lost1,667−$150
Hornets vs. Pacers — Pacers0.1500lost67−$10

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 →