SimpleFunctions
19 contractsKalshi + Polymarketrefreshed just nowCloses May 17, 2026 · 14d1pp · 13h

Club Alianza Atlético vs. CS Huancayo

Liquidity-weighted aggregate sits at 31% across 19 contracts. Kalshi at 49%, Polymarket at 29% — a 20pp cross-venue gap.

Implied probability

31%
0%50%100%

Kalshi

49%

2 contracts

Polymarket

29%

17 contracts

Cross-venue gap

20pp

wide divergence

24h move

−1pp

13h ago

24h volume

$1K

19 contracts

Closes

May 17, 2026

14 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 35% (4 days, 4 points)Aggregate: 35% on 2026-05-03
Aggregate of 19 contracts · 4d

Cross-venue edge

Kalshi 49¢ · Polymarket 29¢ · 20pp spread

Buy on Polymarket (29¢, 17 contracts) and sell on Kalshi (49¢) — assuming both contracts settle on the same outcome.

Bracket families

6 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.

Heads-up — heterogeneous clusters

The top two clusters share only 8% of their title tokens — “Club Alianza Atlético vs. América de Cali” vs “National Bank of Egypt Club vs. Ismaily 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

Club Alianza Atlético vs. América de Cali

12 contracts$4

Cluster 2

National Bank of Egypt Club vs. Ismaily SC - More Markets

3 contracts$0

Cluster 3

Will Otakar Esports win the UCAM Esports Club vs. Otakar Esports Valorant match

1 contract$902

Cluster 4

Club Always Ready vs. CA Lanús: CA Lanús

1 contract$260

Cluster 5

Will UCAM Esports Club win the UCAM Esports Club vs. Otakar Esports Valorant match

1 contract$53

Cluster 6

CD Tolima vs. Club Nacional de Football - More Markets: O/U 2.5

1 contract$0

Analysis

This 32% probability reflects market expectations for Club Alianza Atlético's performance in an upcoming match against CS Huancayo. The estimate sits between two venues with notably different assessments: Kalshi traders price the outcome at 44%, while Polymarket traders assess it at 30%, suggesting disagreement about underlying team strength or current form. The outcome will depend on team composition, recent performance records, and head-to-head history. Resolution occurs when the match concludes, likely within days to weeks based on typical scheduling for Peruvian football. The 14-percentage-point gap between venues indicates meaningful uncertainty that new information—such as injury reports, lineup confirmations, or recent match results—could shift significantly.

  • Kalshi's 44% probability versus Polymarket's 30% reflects a 14-point venue divergence, suggesting traders disagree on the match's fundamental probability
  • Polymarket's 17 contracts provide substantially higher trading volume and sample size than Kalshi's 3 contracts, potentially indicating different confidence levels in price discovery
  • Recent performance data on both clubs' win rates, goal differentials, and head-to-head records would be primary drivers of whether this probability adjusts before match kickoff
  • The listed top contracts span esports and other sports markets, indicating potential data feed issues or market segmentation that could affect accuracy of this specific football match
  • Match timing and venue conditions remain unspecified in available contract data, limiting ability to assess whether current probability reflects favorable or unfavorable home-field factors

What moved the line

  • May 3UCAM Esports Club48pp1563¢ · Kalshi
  • May 2UCAM Esports Club11pp415¢ · Kalshi
  • May 1Otakar Esports8pp513¢ · 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: just now.