SimpleFunctions
20 contractsKalshi + Polymarketrefreshed 4 min ago

SC Sagamihara vs. Tochigi City FC

Liquidity-weighted aggregate sits at 40% across 20 contracts. Kalshi at 48%, Polymarket at 38% — a 10pp cross-venue gap.

Implied probability

40%
0%50%100%

Kalshi

48%

4 contracts

Polymarket

38%

16 contracts

Cross-venue gap

10pp

wide divergence

24h move

no pin

24h volume

$517

20 contracts

Top contract

16¢

$341 · Kalshi

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 42% (4 days, 4 points)Aggregate: 42% on 2026-05-03
Aggregate of 20 contracts · 4d

Cross-venue edge

Kalshi 48¢ · Polymarket 38¢ · 10pp spread

Buy on Polymarket (38¢, 16 contracts) and sell on Kalshi (48¢) — assuming both contracts settle on the same outcome.

Bracket families

5 clusters across 20 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 14% of their title tokens — “Tochigi City FC vs. Yokohama FC” vs “Vegalta Sendai vs. Tochigi SC - More Markets”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Tochigi City FC vs. Yokohama FC

12 contracts$16

Cluster 2

Vegalta Sendai vs. Tochigi SC - More Markets

3 contracts$0

Cluster 3

Will Zero Tenacity win

2 contracts$343

Cluster 4

Will Nigma Galaxy win

2 contracts$158

Cluster 5

Montevideo City Torque vs. CD Palestino: CD Palestino

1 contract$0

What moved the line

  • May 2Nigma Galaxy34pp3771¢ · Kalshi
  • May 3Tochigi City FC16pp5034¢ · Polymarket
  • May 2Zero Tenacity10pp1222¢ · Kalshi
  • May 1Nigma Galaxy9pp7079¢ · Kalshi
  • May 3Both Teams to Score8pp5951¢ · 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: 4 min ago.