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
0.1771
across 780 resolved positions · lower is better
Skill vs own base rate
+29%
beating a trader who only knew how often they win
Calibration error
4.5pp
average gap between price paid and what happened
Win rate
50%
388 of 780 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%175%0%−5pp
10–25%13517%11%−6pp
25–40%12032%25%−7pp
40–60%22450%53%+3pp
60–75%13267%73%+6pp
75–90%11482%81%−1pp
90–100%3893%92%−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
$336
39 open positions
Largest position
17%
share of open capital in one contract
Half the book
5
positions hold half the exposure
Unrealised
−$0
against $336 of open value

The resolved record

Every settled position, rebuilt from on-chain fills. Realised −$388 across 780 positions, with $11 of entry fees paid.

MarketPaidResultSizeP&L
Will Atlante FC win on 2026-08-28? — No0.6300won6$2
Will Club León FC win on 2026-08-28? — No0.6200won6$2
Will Club Necaxa win on 2026-08-28? — No0.7300won15$4
Will CF Cruz Azul win on 2026-08-28? — Yes0.4700won27$14
CA Boca Juniors vs. CA Lanús: O/U 2.5 — Over0.3700lost21−$8
Crystal Palace FC vs. Manchester City FC: O/U 2.5 — Under0.4200lost9−$4
Will Gençlerbirliği SK win on 2026-08-28? — Yes0.4505lost35−$16
Will Real Racing Club win on 2026-08-28? — No0.5000lost88−$44
Will Viborg FF win on 2026-08-28? — No0.4441lost29−$13
Will ASC Oțelul Galați win on 2026-08-28? — No0.6313won25$9
Spread: Paris Saint-Germain FC (-1.5) — Lille OSC0.6800won6$2
Will FC Groningen win on 2026-08-28? — No0.3400won9$6
Crystal Palace FC vs. Manchester City FC: O/U 1.5 — Under0.2000lost18−$4
Will Stade Lavallois Mayenne FC win on 2026-08-28? — No0.5300won5$2
Will Athletic Club win on 2026-08-27? — No0.9000won7$1
Spread: Independiente del Valle (-1.5) — CD Tolima0.6000lost5−$3
Will Independiente del Valle win on 2026-08-18? — No0.3600lost11−$4
Tottenham Hotspur FC vs. Charlton Athletic FC: O/U 2.5 — Over0.6700won5$2
Will Real Sociedad de Fútbol win on 2026-08-26? — Yes0.1000lost11−$1
Will Olympique Lyonnais vs. Fenerbahçe SK end in a draw? — No0.7400won5$1
Will Real Madrid CF vs. Real Sociedad de Fútbol end in a draw? — Yes0.1600lost7−$1
Will Real Madrid CF win on 2026-08-26? — No0.2700lost8−$2
Will CR Brasil win on 2026-08-25? — No0.7400won7$2
Will EC Juventude win on 2026-08-25? — Yes0.4500won17$9
Will Southampton FC win on 2026-08-25? — Yes0.4500lost45−$20
Will Southampton FC win on 2026-08-25? — No0.5300won9$4
Will Al Ettifaq Saudi Club win on 2026-08-25? — No0.9052won29$3
Spread: West Ham United FC (-1.5) — West Ham United FC0.1700won6$5
Will Watford FC vs. Peterborough United FC end in a draw? — Yes0.2600lost5−$1
Will Sheffield Wednesday FC win on 2026-08-25? — No0.8533won23$3
Will Sabah FK win on 2026-08-25? — No0.5200lost6−$3
Will Real Betis Balompié win on 2026-08-25? — Yes0.3700won22$14
Will Brentford FC win on 2026-08-25? — No0.4600lost5−$2
Will Al Fayha Saudi Club win on 2026-08-25? — No0.8200won26$5
Spread: Al Nassr Saudi Club (-1.5) — Al Ettifaq Saudi Club0.4200won5$3
Will Al Taawoun Saudi Club win on 2026-08-25? — No0.4400won8$4
Will Leicester City FC win on 2026-08-25? — No0.8600won5$1
Will Doncaster Rovers FC win on 2026-08-25? — No0.8300won5$1
Doncaster Rovers FC vs. Middlesbrough FC: O/U 2.5 — Over0.5900won5$2
Walsall FC vs. Leyton Orient FC: O/U 2.5 — Over0.5000lost5−$3
Will Ipswich Town FC win on 2026-08-25? — No0.3300lost18−$6
Will FC Seoul win on 2026-08-25? — No0.3000lost18−$5
Spread: Celtic FC (-1.5) — Celtic FC0.1100lost10−$1
Will CA Lanús win on 2026-08-24? — No0.6126won30$12
Will FK Bodø/Glimt win on 2026-08-25? — No0.3500lost13−$5
Nottingham Forest FC vs. Leeds United FC: O/U 1.5 — Over0.7400won5$1
Will CSD Macara win on 2026-08-24? — Yes0.4200lost5−$2
Will Cardiff City FC win on 2026-08-25? — No0.6100won10$4
Botafogo FR vs. CA Paranaense: O/U 2.5 — Under0.5100lost5−$3
Will RC Deportivo A Coruña win on 2026-08-24? — Yes0.2700lost5−$1
Will RCD Mallorca win on 2026-08-24? — No0.6200won5$2
Will Hallescher FC win on 2026-08-24? — No0.9300won5$0
AS Roma vs. ACF Fiorentina: Both Teams to Score — Yes0.5100lost6−$3
Will Amed Sportif win on 2026-08-24? — No0.7000won5$2
Fulham FC vs. Chelsea FC: O/U 2.5 — Over0.5300won19$9
Will Málaga CF win on 2026-08-24? — No0.5900won73$30
Will SS Lazio win on 2026-08-24? — No0.7000lost68−$48
Will CA Osasuna win on 2026-08-24? — Yes0.5100lost36−$18
Will FK Csíkszereda Miercurea Ciuc win on 2026-08-24? — Yes0.1800lost6−$1
Spread: Chelsea FC (-1.5) — Fulham FC0.7300won5$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 →