SimpleFunctions

St. Louis to win Chicago C vs St. Louis

St. Louis is priced at 43¢ on Kalshi. Current book: 39¢ bid, 42¢ ask, 3¢ spread. This outcome ranks #2 of 2 inside Chicago C vs St. Louis Winner.

Price history

43¢ current

+11¢
30¢40¢
May 27, 2026May 28, 2026

Contract brief

If St. Louis wins the Chicago C vs St. Louis professional baseball game originally scheduled for May 30, 2026 at 7:15 PM EDT, then the market resolves to Yes.

Outcome

St. Louis

Rank

#2 of 2

Leader

Chicago C 58¢

Range

39¢-58¢

Family volume

$93

Identifier

KXMLBGAME-26MAY301915CHCSTL-STL

May 28, 2026, 6:08 PM UTC · 0m ago

Implied probability

43¢
Latest venue quote
May 28, 2026, 6:08 PM UTC · 0m ago

Bid

39¢

Ask

42¢

Spread

24h volume

$79

Family rank

#2 of 2

2 outcomes · Chicago C vs St. Louis Winner

Closes

Jun 2, 2026

Family volume

$93

Orderbook snapshot

39 / 42¢

Kalshi
3¢ spread
BidSize
39¢749
38¢851
37¢1.3K
36¢3.0K
33¢20
AskSize
42¢144
43¢1
46¢151
47¢122
48¢464

Contract terms

What resolves this market.

YES condition

If St. Louis wins the Chicago C vs St. Louis professional baseball game originally scheduled for May 30, 2026 at 7:15 PM EDT, then the market resolves to Yes.

Venue

Kalshi

Closes

Jun 2, 2026

Identifier

KXMLBGAME-26MAY301915CHCSTL-STL

SF Signal
SF Index
10951.42
Regime
neutral

Event family

Chicago C vs St. Louis Winner.

The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.

Total volume

$93

Outcomes

2

Highest price

Chicago C 58¢

Current share

85%

Browse this series

MLB Game Winner Markets
Per-series collection — every live contract in the KXMLBGAME series on Kalshi, sorted by 24h volume.

Indicators

Yield, cliff risk, volatility, and regime.

CRI

2

VR

1.04

IAR

0.8/h

Regime

neutral

Score

0.5

Full indicator table

2
VR
1.04
IAR
0.8/h

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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.