SimpleFunctions
6 contractsKalshi + Polymarketrefreshed 1 min ago

São Paulo FC vs. Mirassol FC

Liquidity-weighted aggregate sits at 34% across 6 contracts. Kalshi at 50%, Polymarket at 26% — a 24pp cross-venue gap.

Implied probability

34%
0%50%100%

Kalshi

50%

2 contracts

Polymarket

26%

4 contracts

Cross-venue gap

24pp

wide divergence

24h move

no pin

24h volume

$517

6 contracts

Top contract

81¢

$421 · Kalshi

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 7% (9 days, 9 points)Aggregate: 7% on 2026-05-03
Aggregate of 6 contracts · 9d

Cross-venue edge

Kalshi 50¢ · Polymarket 26¢ · 24pp spread

Buy on Polymarket (26¢, 4 contracts) and sell on Kalshi (50¢) — assuming both contracts settle on the same outcome.

Bracket families

4 clusters across 6 contracts.

These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.

Heads-up — heterogeneous clusters

The top two clusters share only 0% of their title tokens — “Mirassol FC vs. LDU de Quito” vs “Will Tarcísio de Freitas win the 2026 São Paulo gubernatorial election”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Mirassol FC vs. LDU de Quito

3 contracts$46

Cluster 2

Will Tarcísio de Freitas win the 2026 São Paulo gubernatorial election

1 contract$421

Cluster 3

Brazil Série A: Winner: São Paulo

1 contract$50

Cluster 4

Will Fernando Haddad win the 2026 São Paulo gubernatorial election

1 contract$0

What moved the line

  • Apr 28Winner: São Paulo13pp316¢ · Polymarket
  • Apr 30Winner: São Paulo7pp169¢ · Polymarket
  • May 1Tarcísio de Freitas6pp7379¢ · Kalshi
  • May 1Winner: São Paulo3pp96¢ · Polymarket
  • May 3Winner: São Paulo3pp47¢ · Polymarket

Recently closed in general

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

More like this

Adjacent prediction questions.

How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.

Last updated on this page: 1 min ago.