SimpleFunctions
19 contractsKalshi + Polymarketrefreshed 4 min agoCloses Oct 31, 2028 · 912d

Denver Summit FC vs. San Diego Wave FC

Liquidity-weighted aggregate sits at 33% across 19 contracts. Kalshi at 36%, Polymarket at 16% — a 20pp cross-venue gap.

Implied probability

33%
0%50%100%

Kalshi

36%

16 contracts

Polymarket

16%

3 contracts

Cross-venue gap

20pp

wide divergence

24h move

no pin

24h volume

$59K

19 contracts

Closes

Oct 31, 2028

912 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 33% (26 days, 26 points)Aggregate: 33% on 2026-05-03
Aggregate of 19 contracts · 26d

Cross-venue edge

Kalshi 36¢ · Polymarket 16¢ · 20pp spread

Buy on Polymarket (16¢, 3 contracts) and sell on Kalshi (36¢) — assuming both contracts settle on the same outcome.

Bracket families

11 clusters across 19 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

Chicago WS vs San Diego

4 contracts$49K

Cluster 2

Will San Diego

4 contracts$2K

Cluster 3

San Diego Wave FC vs Bay FC Winner

3 contracts$170

Cluster 4

San Diego wins by over 1.5 runs

1 contract$5K

Cluster 5

San Diego vs San Francisco Winner

1 contract$777

Cluster 6

Will Robelis Despaigne win the Junior Dos Santos vs. Robelis Despaigne UFC fight in Round 1: Robelis Despaigne to win in Round 1

1 contract$321

Cluster 7

MLB World Series Champion 2026: San Diego Padres

1 contract$102

Cluster 8

Will either competitor win the Junior Dos Santos vs. Robelis Despaigne fight by decision or the fight result in a draw/no contest: Decision / Draw / No Contest

1 contract$100

Cluster 9

Gimcheon Sangmu FC vs. Ulsan HD FC: Ulsan HD FC

1 contract$86

Cluster 10

Pro Baseball Playoff Qualifiers: San Diego

1 contract$83

Cluster 11

MLB: 2026 NL West Champion : San Diego Padres

1 contract$0

What moved the line

  • May 3San Diego Wave FC52pp1466¢ · Kalshi
  • May 3Robelis Despaigne to win in Round 121pp4221¢ · Kalshi
  • May 1San Diego15pp4459¢ · Kalshi
  • May 3San Diego12pp3446¢ · Kalshi
  • Apr 28San Diego Padres11pp516¢ · 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.