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
0.1740
across 18 resolved positions · lower is better
Skill vs own base rate
+22%
beating a trader who only knew how often they win
Calibration error
5.9pp
average gap between price paid and what happened
Win rate
33%
6 of 18 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%35%0%−5pp
10–25%418%25%+7pp
25–40%832%38%+5pp
40–60%255%50%−5pp
75–90%190%100%+10pp

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
$1.1K
1 open position
Largest position
100%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
$94
against $1.1K 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 $11.4K across 18 positions, with $206 of entry fees paid.

MarketPaidResultSizeP&L
UFC Fight Night: Anthony Hernandez vs. Gregory Rodrigues (Middleweight, Main Card) — Gregory Rodrigues0.3400won4,412$2.9K
UFC 330: Islam Makhachev vs. Ian Machado Garry (Welterweight, Main Card) — Ian Machado Garry0.2492lost14,604−$3.6K
UFC 329: Gable Steveson vs. Elisha Ellison (Heavyweight, Prelims) — Elisha Ellison0.0998lost3,006−$300
UFC Fight Night: Junior Tafa vs. Iwo Baraniewski (Light Heavyweight, Main Card) — Junior Tafa0.2861lost2,446−$700
UFC Fight Night: Arnold Allen vs. Melquizael Costa (Featherweight, Main Card) — Arnold Allen0.5400won926$426
MVP Fight Night: Francis Ngannou vs. Philipe Lins — Lins0.1100lost909−$100
UFC Fight Night: Israel Adesanya vs. Joe Pyfer (Middleweight, Main Card) — Israel Adesanya0.5600lost14,286−$8.0K
UFC Fight Night: Harry Hardwick vs. Marwan Rahiki (Featherweight, Main Card) — Harry Hardwick0.3193lost9,083−$2.9K
UFC 326: Charles Oliveira vs. Max Holloway (Lightweight, Main Card) — Charles Oliveira0.3500won13,324$8.7K
UFC 326: Reinier de Ridder vs. Caio Borralho (Middleweight, Main Card) — Reinier de Ridder0.3316lost6,031−$2.0K
UFC Fight Night: King Green vs. Daniel Zellhuber (Lightweight, Main Card) — Green0.2229won10,094$7.8K
UFC Fight Night: Sean Strickland vs. Anthony Hernandez (Middleweight, Main Card) — Strickland0.2900won17,233$12.2K
Will Moonshot be accused of insider trading? — Yes0.0273lost367−$10
Will MEXC be accused of insider trading? — Yes0.1200lost833−$100
Will Meteora be accused of insider trading? — Yes0.3984lost5,020−$2.0K
Will Hyperliquid be accused of insider trading? — Yes0.0330lost152−$5
Will Pump.fun be accused of insider trading? — Yes0.2793lost3,580−$1000
Will Binance be accused of insider trading? — No0.8999won1,000$100

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 →