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
0.1827
across 112 resolved positions · lower is better
Skill vs own base rate
+16%
beating a trader who only knew how often they win
Calibration error
8.1pp
average gap between price paid and what happened
Win rate
32%
36 of 112 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%125%8%+3pp
10–25%2618%12%−7pp
25–40%1732%29%−3pp
40–60%4650%39%−11pp
60–75%666%83%+18pp
75–90%482%75%−7pp
90–100%193%100%+7pp

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
$746.3K
49 open positions
Largest position
68%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
−$285.0K
against $746.3K of open value

68% 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 −$704.0K across 112 positions, with $46.4K of entry fees paid.

MarketPaidResultSizeP&L
Will Stade Rennais FC 1901 win on 2026-08-23? — Yes0.1500lost613−$92
Will Newcastle United FC win on 2026-08-23? — Yes0.2400lost187,845−$45.1K
Will Villarreal CF win on 2026-08-23? — No0.7900won15,327$3.2K
Manchester City FC vs. AFC Bournemouth: O/U 0.5 — Under0.0350lost901−$32
Will Club Atlético de Madrid vs. Málaga CF end in a draw? — Yes0.2000lost62−$12
Colorado Rockies vs. Arizona Diamondbacks — Colorado Rockies0.3400lost170,852−$58.1K
Texas Rangers vs. Los Angeles Angels — Los Angeles Angels0.4900lost16,992−$8.3K
New York Mets vs. Atlanta Braves — New York Mets0.4300won28,811$16.4K
Boston Red Sox vs. Toronto Blue Jays — Toronto Blue Jays0.4000won7,943$4.8K
UFC 330: Mackenzie Dern vs. Gillian Robertson (Women's Strawweight, Main Card) — Gillian Robertson0.3600lost32,401−$11.7K
UFC 330: Jeremiah Wells vs. Myktybek Orolbai (Welterweight, Prelims) — Jeremiah Wells0.1100won30,420$27.1K
Los Angeles Dodgers vs. Arizona Diamondbacks — Arizona Diamondbacks0.4400won46,666$26.1K
Athletics vs. Boston Red Sox — Athletics0.3200won71,096$48.3K
Paris Saint-Germain vs. Aston Villa: O/U 1.5 — Under0.1900lost10−$2
Spread: Boston Red Sox (-1.5) — Athletics0.4800won52$27
Seattle Mariners vs. Los Angeles Dodgers — Seattle Mariners0.4200lost32,897−$13.8K
Boston Red Sox vs. Athletics — Athletics0.3600lost359−$129
Chicago Cubs vs. St. Louis Cardinals — St. Louis Cardinals0.5000lost1,493−$747
Spread: Los Angeles Dodgers (-1.5) — Seattle Mariners0.5900lost12,910−$7.6K
Exact Score: KF Víkingur 0 - 1 MH Hapoel Be'er Sheva? — Yes0.0700lost2,263−$158
Will SK Puntigamer Sturm Graz win on 2026-07-21? — No0.4888lost100,796−$49.3K
Will Heart of Midlothian FC win on 2026-07-21? — Yes0.2400lost3,124−$750
Will Spain win the 2026 FIFA World Cup? — Yes0.1420won236,812$203.2K
Will Switzerland win the 2026 FIFA World Cup? — Yes0.0086lost1,701,312−$14.6K
Will England win the 2026 FIFA World Cup? — Yes0.0999lost622,743−$62.2K
Will Brazil win the 2026 FIFA World Cup? — No0.9333won174,894$11.7K
Will Norway win the 2026 FIFA World Cup? — Yes0.0238lost343,776−$8.2K
Will Germany win the 2026 FIFA World Cup? — Yes0.0560lost89−$5
Will Spain win on 2026-07-14? — Yes0.2925won7,640$5.4K
France vs. Spain: O/U 1.5 — Under0.2346lost18,716−$4.4K
France vs. Spain: O/U 0.5 — Under0.0700lost25,058−$1.8K
Exact Score: France 0 - 0 Spain? — Yes0.0700lost262,828−$18.4K
Spread: England (-1.5) — England0.2648lost140,274−$37.1K
Norway vs. England: Team to Advance — England0.6400won27,409$9.9K
Will Morocco win on 2026-07-09? — No0.8600won24,486$3.4K
Will Argentina win on 2026-07-07? — Yes0.7300won204,625$55.2K
United States vs. Belgium: O/U 1.5 — Under0.2000lost26,348−$5.3K
Will Spain win on 2026-07-06? — No0.5000lost186,885−$93.4K
Will Norway win on 2026-07-05? — No0.8000lost126,743−$101.4K
Will Portugal vs. Croatia end in a draw? — Yes0.2500lost134,556−$33.6K
Will Spain vs. Austria end in a draw? — Yes0.1872lost106,146−$19.9K
Spain vs. Austria: Team to Advance — Austria0.1289lost444,088−$57.3K
Spread: Spain (-1.5) — Austria0.5235lost73,163−$38.3K
Spain vs. Austria: O/U 1.5 — Under0.1975lost5,367−$1.1K
Spain vs. Austria: O/U 2.5 — Under0.4324lost35,615−$15.4K
Mexico vs. Ecuador: Team to Advance — Ecuador0.3700lost2,715−$1.0K
Will Ecuador win on 2026-06-30? — Yes0.2300lost695,855−$160.0K
Will the New York Knicks win the 2026 NBA Finals? — Yes0.1790won7,004$5.8K
France vs. Sweden: O/U 3.5 — Under0.5400won45,271$20.8K
Will France win on 2026-06-30? — No0.2300lost100,013−$23.0K
Will South Africa win on 2026-06-28? — Yes0.1700lost14,474−$2.5K
Will Tunisia vs. Netherlands end in a draw? — Yes0.0900lost68,459−$6.2K
Tunisia vs. Netherlands: O/U 0.5 — Under0.0290lost44−$1
Tunisia vs. Netherlands: O/U 1.5 — Under0.1200lost10,669−$1.3K
Morocco vs. Haiti: O/U 1.5 — Under0.1846lost9,974−$1.8K
Will Morocco win on 2026-06-24? — No0.1778lost328,006−$58.3K
Morocco vs. Haiti: O/U 2.5 — Under0.4000lost9,559−$3.8K
Will Brazil win on 2026-06-24? — No0.2500lost236,242−$59.1K
Will Morocco vs. Haiti end in a draw? — Yes0.1200lost355,161−$42.6K
Will Qatar win on 2026-06-24? — Yes0.1200lost158,923−$19.1K

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 →