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
0.1615
across 161 resolved positions · lower is better
Skill vs own base rate
+25%
beating a trader who only knew how often they win
Calibration error
7.0pp
average gap between price paid and what happened
Win rate
68%
110 of 161 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%26%0%−6pp
10–25%717%14%−3pp
25–40%834%25%−9pp
40–60%2353%43%−9pp
60–75%4367%65%−2pp
75–90%3383%91%+8pp
90–100%4597%87%−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
3 open positions
Largest position
87%
share of open capital in one contract
Half the book
1
position holds half the exposure
Unrealised
−$157
against $1.1K of open value

87% 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 −$738 across 161 positions, with $1 of entry fees paid.

MarketPaidResultSizeP&L
Elon Musk trillionaire before 2027? — Yes0.9300won5$0
US x Iran permanent peace deal by December 31, 2026? — Yes0.7800won10$2
Will the Fed increase interest rates by 50+ bps after the July 2026 meeting? — No0.9940won2,000$12
Will Germany win the 2026 FIFA World Cup? — Yes0.0530lost190−$10
France vs. Spain: Team to Advance — France0.6000lost17−$10
Will Germany reach the Semifinals at the 2026 FIFA World Cup? — No0.8400won100$16
Will England reach the Semifinals at the 2026 FIFA World Cup? — Yes0.3700won30$19
Will DR Congo reach the Round of 16 at the 2026 FIFA World Cup? — No0.8900won100$11
Will USA reach the Round of 16 at the 2026 FIFA World Cup? — Yes0.8400won10$2
Will England reach the Round of 16 at the 2026 FIFA World Cup? — Yes0.8900won50$5
Spain vs. Austria: Team to Advance — Austria0.1200lost90−$11
Tesla launches unsupervised full self driving (FSD) by June 30? — Yes0.6500won2$1
Will Qatar advance to the knockout stages at the 2026 FIFA World Cup? — No0.7900won10$2
Will Haiti advance to the knockout stages at the 2026 FIFA World Cup? — No0.8800won20$2
Will Curacao advance to the knockout stages at the 2026 FIFA World Cup? — No0.9300won11$1
Will Jordan advance to the knockout stages at the 2026 FIFA World Cup? — No0.8100won30$6
Will Iraq advance to the knockout stages at the 2026 FIFA World Cup? — No0.8700won30$4
Will Cape Verde advance to the knockout stages at the 2026 FIFA World Cup? — No0.7000lost30−$21
Will England win on 2026-06-17? — Yes0.5800won17$7
Will the Fed decrease interest rates by 50+ bps after the June 2026 meeting? — No0.9950won1,000$5
Will Mexico win on 2026-06-11? — Yes0.7000won10$3
Will Sporting win the 2025–26 Champions League? — No0.9873won3,000$38
Will Arsenal win the 2025–26 Champions League? — Yes0.2800lost1,000−$280
Will Bayern Munich win the 2025–26 Champions League? — Yes0.2200lost1,000−$220
Will Barcelona win the 2025–26 Champions League? — Yes0.1700lost1,000−$170
Will Liverpool win the 2025–26 Champions League? — No0.9300won10$1
Will SC Freiburg win on 2026-05-20? — Yes0.1700lost50−$8
Will Gustavo Petro be charged in the US by April 30? — No0.9600won100$4
Will the Fed decrease interest rates by 50+ bps after the April 2026 meeting? — No0.9950won2,000$10
Will Paris Saint-Germain FC win on 2026-04-28? — No0.6100lost10−$6
Will 1. FSV Mainz 05 win on 2026-04-25? — No0.1100won95$84
Will Real Madrid CF win on 2026-04-07? — No0.6300won10$4
Will SC Freiburg win on 2026-04-04? — No0.5200won20$10
Will the US confirm that aliens exist by March 31? — No0.9930won100$1
Khamenei out as Supreme Leader of Iran by March 31? — Yes0.9700won10$0
Will the Fed decrease interest rates by 50+ bps after the March 2026 meeting? — No0.9930won100$1
Will Lindsey Vonn record the most gold medals at the 2026 Winter Olympics? — No0.9969won1,886$6
Will Austria record a gold medal at the 2026 Winter Olympics? — Yes0.9979won786$2
Will Austria record a medal at the 2026 Winter Olympics? — Yes0.9969won1,910$6
Winter Games 2026: Lindsey Vonn to medal? — Yes0.4000lost100−$40
Fed decreases interest rates by 50+ bps after January 2026 meeting? — No0.9930won100$1
Will Tim Walz drop out by January 6? — Yes0.9952won80$0
Will Luke Littler win the PDC World Darts Championship? — Yes0.6300won2$1
Trump imposes tariff on semiconductors by December 31? — No0.9940won10$0
Will Bitcoin reach $1,000,000 by December 31, 2025? — No0.9980won1,904$4
Will MrBeast's next video get less than 25 million views on day 1? — Yes0.9910won5$0
Will "Tequila" be said during the next episode of the All-In podcast? — No0.9600lost32−$31
Will "Interest Rate" be said during the next episode of the All-In podcast? — No0.9500won10$1
Will "Idiot" or "Dumb" be said during the next episode of the All-In podcast? — Yes0.9832lost212−$208
Will "Biden" or "Kamala" be said during the next episode of the All-In podcast? — Yes0.9831won207$3
Will "Nuclear" be said during the next episode of the All-In podcast? — No0.9648won84$3
Will "Crypto" be said during the next episode of the All-In podcast? — Yes0.9810won207$4
Lions vs. Vikings — Lions0.7200lost3−$2
49ers vs. Colts — 49ers0.6800won3$1
Will 1. FC Heidenheim 1846 win on 2025-12-21? — No0.9600won5$0
Will FC Barcelona win on 2025-12-21? — Yes0.5300won4$2
Will FC Bayern München win on 2025-12-21? — Yes0.8600won5$1
Will RB Leipzig win on 2025-12-20? — No0.5600won4$2
Will Borussia Mönchengladbach win on 2025-12-19? — No0.8600won2$0
Will SV Werder Bremen win on 2025-12-14? — No0.6800won7$2

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 →