SimpleFunctions
19 contractsKalshi + Polymarketrefreshed 23 min agoCloses Dec 20, 2026 · 231d19pp · 6h

FC Seoul vs. Gimcheon Sangmu FC

Liquidity-weighted aggregate sits at 31% across 19 contracts. Kalshi at 29%, Polymarket at 31%.

Implied probability

31%
0%50%100%

Kalshi

29%

2 contracts

Polymarket

31%

17 contracts

Cross-venue gap

2pp

tight

24h move

−19pp

6h ago

24h volume

$251

19 contracts

Closes

Dec 20, 2026

231 days

30-day trend

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

Cross-venue edge

Kalshi 29¢ · Polymarket 31¢ · 2pp spread

Buy on Kalshi (29¢, 2 contracts) and sell on Polymarket (31¢) — assuming both contracts settle on the same outcome.

Bracket families

2 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 0% of their title tokens — “Gimcheon Sangmu” vs “FC Seoul vs. FC Anyang”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Gimcheon Sangmu

14 contracts$154

Cluster 2

FC Seoul vs. FC Anyang

5 contracts$98

Analysis

This market assigns an equal 50% probability to FC Seoul winning their match against Gimcheon Sangmu FC. The market is currently thin, with data aggregated from a single Polymarket contract showing minimal 24-hour trading volume of $265. Seoul's recent form against comparable opponents and Gimcheon Sangmu's defensive record would likely influence the probability directionally. The match outcome will resolve definitively once the fixture is played, with team lineups, weather conditions, and any last-minute roster changes potentially affecting pre-match expectations. Currently, the equal split suggests genuine uncertainty about the result, though larger trading volume would typically reveal stronger directional conviction from informed bettors on either team's likelihood of victory.

  • FC Seoul's win percentage and goal differential in their last 5 K League 1 matches before this fixture
  • Gimcheon Sangmu FC's defensive record and goals conceded per match over the same recent period
  • Head-to-head history between these two teams, if available, including venue advantage
  • Injury or suspension status of key players for either squad ahead of match day
  • Trading volume and contract spreads on Polymarket remain below $300 in 24h volume, suggesting limited market conviction or late discovery of the fixture

What moved the line

  • May 2Ulsan HD FC (-2.5)24pp3713¢ · Polymarket
  • May 2Gimcheon Sangmu FC (-2.5)22pp3513¢ · Polymarket
  • May 2Ulsan HD FC (-1.5)16pp3620¢ · Polymarket
  • May 2Gimcheon Sangmu FC (-1.5)11pp3120¢ · Polymarket
  • May 2Draw (Gimcheon Sangmu FC vs. Ulsan HD FC)9pp3829¢ · Polymarket

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: 23 min ago.