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
0.1476
across 32 resolved positions · lower is better
Skill vs own base rate
+39%
beating a trader who only knew how often they win
Calibration error
4.4pp
average gap between price paid and what happened
Win rate
59%
19 of 32 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%33%0%−3pp
10–25%220%0%−20pp
40–60%1152%55%+3pp
60–75%566%60%−6pp
75–90%583%80%−3pp
90–100%697%100%+3pp

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
$25.4K
2 open positions
Largest position
99%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$339
against $25.4K of open value

99% 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 $39.9K across 32 positions, with $26 of entry fees paid.

MarketPaidResultSizeP&L
Will Trump nominate Judy Shelton as the next Fed chair? — No0.9670won12,703$419
Will Trump nominate Kevin Warsh as the next Fed chair? — Yes0.7600won119$29
Will Kevin Warsh be confirmed as Fed Chair? — No0.0570lost8,772−$500
UFC 329: Max Holloway vs. Conor McGregor (Welterweight, Main Card) — Max Holloway0.6500won24,914$8.7K
MicroStrategy sells any Bitcoin by May 31, 2026? — Yes0.0069lost13,368−$92
Will the Detroit Pistons win the 2026 NBA Finals? — Yes0.0270lost44,387−$1.2K
US x Iran ceasefire by April 15? — Yes0.7200won3,827$1.1K
Netanyahu out by March 31? — No0.9689won35,288$1.1K
US strikes Iran by January 14, 2026? — Yes0.5896lost462−$272
Lighter market cap (FDV) >$1B one day after launch? — Yes0.6130won408$158
Will Zohran Mamdani win the 2025 NYC mayoral election? — Yes0.8850won8,927$1.0K
Israel x Hamas ceasefire by October 31? — Yes0.4188won10,079$5.9K
Will Jannik Sinner win Wimbledon 2025? — Yes0.5200won9,598$4.6K
Another Iran strike on Israel in 2024? — Yes0.6500lost1,855−$1.2K
Israel x Hezbollah Ceasefire in 2024? — No0.4774lost3,000−$1.4K
Israel military action against Iran by end of 2024? — Yes0.9320won1,021$69
Will a Democrat win Nevada Presidential Election? — Yes0.4300lost1,911−$822
Will a Republican win Nevada Presidential Election? — No0.4300lost1,873−$805
Will Donald Trump win the 2024 US Presidential Election? — Yes0.5628won78,273$34.2K
Will Trump go on Joe Rogan before election? — Yes0.9494won1,911$97
Israel military response against Iran in October? — Yes0.7760won31,810$7.1K
Will the HBO documentary identify someone else as Satoshi? — Yes0.9910won4,166$37
No change in Fed interest rates after 2024 September meeting? — No0.9880won3,512$42
Fed decreases interest rates by 50+ bps after September 2024 meeting? — Yes0.5603won8,904$3.9K
Will Kristi Noem win the 2024 Republican VP nomination? — Yes0.1922lost3,746−$720
Will Tim Scott win the 2024 Republican VP nomination? — Yes0.1988lost9,055−$1.8K
Will JD Vance win the 2024 Republican VP nomination? — Yes0.5959won5,033$2.0K
Will Tim Walz be the 2024 Democratic VP nominee? — Yes0.5942won4,207$1.7K
Will Josh Shapiro be the 2024 Democratic VP nominee? — Yes0.6712lost5,960−$4.0K
Ethereum ETF approved by May 31? — No0.8638lost22,046−$19.0K
Bitcoin ETF approved by Jan 15? — Yes0.8521won10,791$1.6K
Did Israeli intelligence have advanced knowledge of the Attack? — Yes0.5417lost3,700−$2.0K

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 →