8% — Will Chicago WS vs Los Angeles D be the matchup in the Pro Baseball Championship Series
Kalshi 8% · 4 contracts · $2K volume · medium confidence
Updated 2026-08-27 13:33:45 UTC

Why this matters:
This contract represents the probability that the Chicago White Sox will face the Los Angeles Dodgers in baseball's championship series. At 6%, the market assigns this outcome low likelihood compared to alternatives like New York vs Los Angeles (9%) or Toronto vs San Diego (6%). The probability reflects both teams' current competitive standing and playoff trajectory. The White Sox's performance through the regular season and their position in the American League playoff race are primary drivers—improvements in their record or postseason seeding would increase this probability. Conversely, strong performances by other AL contenders reduce Chicago's chances. The resolution of this contract depends entirely on which teams actually advance from their respective league playoffs to the championship series, which concludes in early November 2026. Market pricing suggests other matchups currently appear more likely to occur.

Key factors:
- Chicago White Sox's current win-loss record and playoff seeding position in the American League relative to other contenders
- Los Angeles Dodgers' performance and playoff positioning in the National League, particularly against other NL rivals
- Historical playoff advancement rates and recent head-to-head records between these teams if they have met in previous postseason play
- Injury status of key players on both rosters that could materially affect playoff probability
- Comparative volume and pricing of related championship series contracts, showing market expectations for alternative matchups

Contracts:
- Will Boston vs Los Angeles D be the matchup in the Pro Baseball Championship Series?: Boston vs Los Angeles D — 7¢ Kalshi $922 (weight 40%)
- Will New York Y vs Los Angeles D be the matchup in the Pro Baseball Championship Series?: New York Y vs Los Angeles D — 10¢ Kalshi $821 (weight 35%)
- Will Tampa Bay vs Milwaukee be the matchup in the Pro Baseball Championship Series?: Tampa Bay vs Milwaukee — 3¢ Kalshi $352 (weight 15%)
- Will Tampa Bay vs Los Angeles D be the matchup in the Pro Baseball Championship Series?: Tampa Bay vs Los Angeles D — 10¢ Kalshi $239 (weight 10%)

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-08-27T13:20:50.973Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "8% per prediction markets (SimpleFunctions, August 2026)"
Canonical: https://simplefunctions.dev/answer/teamsinws
Full data: https://simplefunctions.dev/api/public/query?q=Will%20Chicago%20WS%20vs%20Los%20Angeles%20D%20be%20the%20matchup%20in%20the%20Pro%20Baseball%20Championship%20Series
Provider: SimpleFunctions — https://simplefunctions.dev