12% — Will Saint Louis win the MLS Western Conference
Kalshi 12% · 7 contracts · $1K volume · medium confidence
Updated 2026-09-23 00:59:19 UTC

Why this matters:
This probability reflects market expectations that Saint Louis will win the 2026 MLS Western Conference championship. At 5 cents per contract, traders are pricing in roughly a 5% chance, suggesting significant skepticism about the team's playoff prospects relative to better-capitalized competitors like Vancouver (26%) and Los Angeles FC (11%). The team's actual regular-season performance through mid-September—including their current standings position, injury situation, and recent form—drives most of the pricing, while uncertainty around late-season trades and playoff momentum creates the remaining variance. The Western Conference playoff bracket will be determined by the regular season's final results in late October, which represents the key resolution point for this market.

Key factors:
- Saint Louis's current MLS Western Conference table position and goal differential as of early September 2026
- Total regular-season games remaining and realistic path to top-two seeding needed for favorable playoff positioning
- Historical performance metrics: the team's win-loss record, points-per-game average, and head-to-head records against teams ranked above them
- Roster availability including injury status of key players and likelihood of mid-season acquisitions through the secondary transfer window
- Vancouver's 26% pricing advantage, indicating market consensus that at least one other Western Conference team is significantly favored to advance further than Saint Louis

Contracts:
- Will San Jose win the MLS Western Conference?: San Jose — 8¢ Kalshi $1K (weight 96%)
- Will Houston win the MLS Western Conference?: Houston — 10¢ Kalshi $43 (weight 3%)
- Will Vancouver win the MLS Western Conference?: Vancouver — 26¢ Kalshi $3 (weight 0%)
- Will Dallas win the MLS Western Conference?: Dallas — 7¢ Kalshi $0 (weight 0%)
- Will Saint Louis win the MLS Western Conference?: Saint Louis — 9¢ Kalshi $0 (weight 0%)
- Will Colorado win the MLS Western Conference?: Colorado — 4¢ Kalshi $0 (weight 0%)
- Will Los Angeles F win the MLS Western Conference?: Los Angeles F — 18¢ Kalshi $0 (weight 0%)

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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: 2026-09-23T00:20:51.492Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "12% per prediction markets (SimpleFunctions, September 2026)"
Canonical: https://simplefunctions.dev/answer/mlswest
Full data: https://simplefunctions.dev/api/public/query?q=Will%20Saint%20Louis%20win%20the%20MLS%20Western%20Conference
Provider: SimpleFunctions — https://simplefunctions.dev