SimpleFunctions
14 contractsKalshi + Polymarketrefreshed 6 min agoCloses Jan 20, 2029 · 987d

Al Najmah Saudi Club vs. Al Taawoun Saudi Club

Liquidity-weighted aggregate sits at 38% across 14 contracts. Kalshi at 51%, Polymarket at 32% — a 19pp cross-venue gap.

Implied probability

38%
0%50%100%

Kalshi

51%

4 contracts

Polymarket

32%

10 contracts

Cross-venue gap

19pp

wide divergence

24h move

no pin

24h volume

$1K

14 contracts

Closes

Jan 20, 2029

987 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 15% (28 days, 28 points)Aggregate: 15% on 2026-05-08
Aggregate of 14 contracts · 28d

Cross-venue edge

Kalshi 51¢ · Polymarket 32¢ · 19pp spread

Buy on Polymarket (32¢, 10 contracts) and sell on Kalshi (51¢) — assuming both contracts settle on the same outcome.

Bracket families

7 clusters across 14 contracts.

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

Cluster 1

Saudi Arabia vs. Uruguay

3 contracts$482

Cluster 2

Spain vs. Saudi Arabia

3 contracts$11

Cluster 3

Cabo Verde vs. Saudi Arabia

3 contracts$0

Cluster 4

Will Israel and Saudi Arabia normalize relations before Jan

2 contracts$39

Cluster 5

Spain vs Saudi Arabia Winner

1 contract$338

Cluster 6

Which countries will recognize Israel by June 30

1 contract$311

Cluster 7

Where will Mohamed Salah go next

1 contract$80

What moved the line

  • May 2Draw (Spain vs. Saudi Arabia)6pp1711¢ · Polymarket
  • May 7Any Saudi Pro League Club5pp5055¢ · Kalshi
  • May 3Spain5pp8287¢ · Polymarket
  • May 6Any Saudi Pro League Club3pp4750¢ · Kalshi
  • May 6Saudi Arabia3pp2118¢ · Kalshi

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: 6 min ago.