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
0.0629
across 43 resolved positions · lower is better
Skill vs own base rate
+70%
beating a trader who only knew how often they win
Calibration error
6.1pp
average gap between price paid and what happened
Win rate
30%
13 of 43 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%212%0%−2pp
10–25%915%22%+8pp
40–60%446%50%+4pp
60–75%370%100%+30pp
75–90%285%100%+15pp
90–100%498%100%+2pp

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
$18.6K
216 open positions
Largest position
5%
share of open capital in one contract
Half the book
48
positions hold half the exposure
Unrealised
−$13.2K
against $18.6K of open value

The resolved record

Every settled position, rebuilt from on-chain fills. Realised $3.2K across 43 positions, with $147 of entry fees paid.

MarketPaidResultSizeP&L
SpaceX IPO closing market cap above $2.6T? — Yes0.1769lost947−$168
SpaceX IPO closing market cap above $2.8T? — Yes0.1096lost680−$75
SpaceX IPO closing market cap above $1.2T? — No0.0217lost571−$12
Will SpaceX's market cap be between $1.6T and $1.8T at market close on IPO day? — Yes0.0632lost1,580−$100
Will SpaceX's market cap be between $1.4T and $1.6T at market close on IPO day? — Yes0.0339lost899−$30
SpaceX IPO closing market cap above $3T? — Yes0.1118lost899−$100
Will SpaceX's market cap be less than $1.0T at market close on IPO day? — Yes0.0111lost224−$2
Will SpaceX's market cap be between $1.8T and $2.0T at market close on IPO day? — Yes0.1200lost68−$8
China x Philippines military clash before 2027? — Yes0.1771won445$366
US x Iran permanent peace deal by December 31, 2026? — Yes0.7125won4,166$1.2K
Will SpaceX IPO by December 31, 2026? — No0.0121lost2,783−$34
Internet Access restored in Iran by December 31, 2026? — Yes0.8310won186$31
Internet Access restored in Iran by September 30, 2026? — Yes0.7426won317$82
Israel withdraws from Lebanon by July 31, 2026? — Yes0.1344lost1,876−$252
US x Iran permanent peace deal by July 31, 2026? — Yes0.5009won10,529$5.3K
Will the Fed increase interest rates by 25 bps after the July 2026 meeting? — Yes0.0417lost33,273−$1.4K
Will the Fed decrease interest rates by 25 bps after the July 2026 meeting? — Yes0.0168lost16,109−$270
Will the Fed decrease interest rates by 50+ bps after the July 2026 meeting? — Yes0.0030lost12,953−$39
Will France win the 2026 FIFA World Cup? — Yes0.1572lost415−$65
Will Netherlands win the 2026 FIFA World Cup? — Yes0.0363lost1,119−$41
Will the US confirm that aliens exist by June 30? — Yes0.0201lost24,764−$498
Mojtaba Khamenei seen in public by June 30? — Yes0.1266lost452−$57
Will the Cleveland Cavaliers win the 2026 NBA Finals? — Yes0.0222lost734−$16
Will Alphabet be the largest company in the world by market cap on June 30? — No0.9563won2,120$93
Will Anthropic not IPO by June 30, 2026? — Yes0.9919won64$1
Will NVIDIA be the largest company in the world by market cap on June 30? — Yes0.8716won247$32
Will Trump restart Project Freedom by June 30? — Yes0.2090won757$599
Will Gold (GC) hit (LOW) $3,400 by end of June? — Yes0.0142lost859−$12
Will the Iranian regime fall by June 30? — Yes0.0222lost21,380−$475
Will Apple be the largest company in the world by market cap on June 30? — Yes0.0276lost15,881−$438
Ukraine signs peace deal with Russia by June 30? — Yes0.0700lost90−$6
Strait of Hormuz traffic returns to normal by end of June? — Yes0.4160lost1,231−$512
Will Apple be the largest company in the world by market cap on June 30? — No0.9658won28$1
Will the Fed decrease interest rates by 25 bps after the June 2026 meeting? — Yes0.0120lost16,112−$194
Will there be no change in Fed interest rates after the June 2026 meeting? — No0.0123lost1,429−$18
Will the Fed decrease interest rates by 50+ bps after the June 2026 meeting? — Yes0.0054lost21,545−$116
Will the Fed increase interest rates by 25 bps after the June 2026 meeting? — Yes0.0110lost3,170−$35
Will the US confirm that aliens exist by May 31? — No0.9920won9$0
US x Iran permanent peace deal by June 30, 2026? — Yes0.4715won3,290$1.7K
Will Donald Trump announce that the United States blockade of the Strait of Hormuz has been lifted by May 31, 2026? — Yes0.4704lost2,238−$1.1K
Strait of Hormuz traffic returns to normal by end of May? — Yes0.0191lost18,758−$357
GTA VI released before June 2026? — Yes0.0031lost2,103−$7
Internet Access restored in Iran by June 30, 2026? — Yes0.6317won554$204

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 →