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
0.2162
across 214 resolved positions · lower is better
Skill vs own base rate
+10%
beating a trader who only knew how often they win
Calibration error
6.9pp
average gap between price paid and what happened
Win rate
41%
87 of 214 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%174%6%+1pp
10–25%3017%23%+6pp
25–40%3733%38%+5pp
40–60%8548%45%−4pp
60–75%3768%51%−17pp
75–90%881%100%+19pp

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
$5.3K
1 open position
Largest position
100%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
−$408
against $5.3K 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 −$5.0K across 214 positions, with $17 of entry fees paid.

MarketPaidResultSizeP&L
Will Real Betis Balompié win on 2026-08-21? — Yes0.4600won15$8
Will Club Atlético de Madrid win on 2026-08-19? — No0.2700lost1,797−$485
Estoril Open: Kyrian Jacquet vs Alexander Blockx — Kyrian Jacquet0.1100lost2,083−$229
Estoril Open: Kyrian Jacquet vs Alexander Blockx — Alexander Blockx0.7000won130$39
UFC Fight Night: Ramazan Temirov vs. Steve Erceg (Flyweight, Main Card) — Steve Erceg0.4900lost50−$25
Will Argentina win on 2026-07-19? — No0.7350won720$191
Exact Score: England 0 - 0 Argentina? — Yes0.1200lost199−$24
Exact Score: France 0 - 0 Spain? — Yes0.0800lost313−$25
Exact Score: France 1 - 3 Morocco? — Yes0.0120lost636−$8
Rayan Cherki: 1+ goals — Yes0.0880lost114−$10
Egypt to score first vs. Argentina? — Yes0.1700won588$488
Will Argentina win on 2026-07-07? — No0.2700lost276−$75
Switzerland vs. Algeria: Team to Advance — Algeria0.2199lost400−$88
Will Portugal win on 2026-07-02? — Yes0.8825won1,299$153
Will Belgium win on 2026-07-01? — Yes0.0010lost343−$0
Will the New York Knicks win the 2026 NBA Finals? — Yes0.0829won1,206$1.1K
Netherlands vs. Morocco: Both Teams to Score — Yes0.1000won5$5
Will Germany win on 2026-06-25? — No0.3710won11,720$7.4K
Will Mexico win on 2026-06-24? — No0.4600lost11−$5
Paraguay leading at halftime? — Yes0.2200won1,591$1.2K
Spurs vs. Knicks — Spurs0.4700won43$23
Roland Garros ATP: Rafael Jodar vs Alexander Zverev — Alexander Zverev0.7700won35$8
Will Ukraine win on 2026-06-07? — Yes0.0196lost2,854−$56
Will Denmark win on 2026-06-07? — No0.3062lost3,265−$1000
Will Nice win on 2026-05-29? — Yes0.4900won2,539$1.3K
Cleveland Guardians vs. Detroit Tigers — Detroit Tigers0.4100lost1,360−$558
Will Juventus FC win on 2026-05-24? — Yes0.6800lost88−$60
Will Girona FC win on 2026-05-23? — No0.4600won199$107
Spurs vs. Timberwolves — Timberwolves0.0200lost10,060−$201
Will Brentford FC win on 2026-05-09? — Yes0.0187lost5,340−$100
Will Paris Saint-Germain FC win on 2026-05-06? — No0.6331won1,579$579
Will FC Barcelona win on 2026-05-02? — No0.4200lost49−$21
Will Paris Saint-Germain FC win on 2026-05-02? — No0.2800won444$319
Will Villarreal CF win on 2026-05-02? — No0.4400lost84−$37
Suns vs. Nets — Nets0.1096lost4,562−$500
Jazz vs. Bulls — Jazz0.2462lost1,016−$250
Raptors vs. Pacers: O/U 223.5 — Over0.4498lost1,778−$800
Will FC Barcelona win on 2026-01-11? — No0.5200lost1,852−$963
Will the price of Bitcoin be above $92,000 on January 11? — Yes0.0321lost1,557−$50
Will FC Bayern München win on 2026-01-11? — No0.1200lost2,600−$312
Will Chelsea FC win on 2026-01-10? — Yes0.7200won830$232
Will Aston Villa FC win on 2026-01-03? — No0.4900lost277−$136
Spurs vs. Pacers — Pacers0.3500lost154−$54
Spurs vs. Pacers — Spurs0.6600won1,515$515
Will AC Milan win on 2026-01-02? — No0.3700lost1,690−$625
76ers vs. Mavericks — Mavericks0.4400lost5,073−$2.2K
Knicks vs. Spurs — Knicks0.4200lost5,870−$2.5K
Will Cameroon win on 2025-12-31? — No0.3400lost1,304−$443
Warriors vs. Nets — Warriors0.6600won5,800$2.0K
Will Morocco win on 2025-12-29? — No0.1800lost4,600−$828
Will Sporting CP win on 2025-12-28? — No0.1100lost5,827−$641
Will AC Milan win on 2025-12-28? — Yes0.7171won39$11
Mavericks vs. Warriors — Warriors0.6800won3$1
Will Qarabağ Ağdam FK win on 2025-12-10? — No0.5100won6,151$3.0K
Ducks vs. Penguins — Penguins0.5100lost3,061−$1.6K
Utah vs. Canucks — Canucks0.4500lost3,258−$1.5K
Clippers vs. Hawks — Clippers0.4600won2,441$1.3K
Trail Blazers vs. Cavaliers — Trail Blazers0.1900won7,500$6.1K
Will Arsenal win on 2025-12-03? — No0.3109lost10,473−$3.3K
Colts vs. Chiefs — Colts0.3568lost9,207−$3.3K

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 →