Traders give Vancouver Whitecaps FC about a 40.0% chance. St. Louis City SC follows at 11.8%, FC Dallas follows at 11.3%, and San Jose Earthquakes follows at 9.5%. Compare prices from Kalshi and Polymarket. The largest cross-platform price difference is 1.5 percentage points.
Market RulebooksOfficial settlement criteria and edge cases
Market Rulebook: MLS Western Conference Champion
Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
Kalshi
Primary Rule
If Vancouver is the 2026 Major League Soccer (MLS) Western Conference champion, then the market resolves to Yes.
This market refers to the Western Conference champion in the MLS playoffs.
Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.
This market will resolve according to the team that wins the 2026 MLS Western Conference (the Western Conference club that advances to MLS Cup 2026 by winning the Western Conference Final).
If at any point it becomes impossible for a listed team to win the 2026 MLS Western Conference per the rules of MLS (e.g., they are eliminated from the Western Conference playoffs), the corresponding market will resolve to "No".
If the 2026 MLS season is cancelled, postponed after December 31, 2026, 11:59 PM ET, or there is otherwise no Western Conference champion declared within that timeframe, this market will resolve to "Other".
The primary resolution source will be official information from Major League Soccer; however, a consensus of credible reporting may also be used.
Resolution Oracles
UMA Optimistic OracleConsensus of Sources
Frequently Asked Questions
How is the MLS Western Conference Champion determined?
The champion is decided through a playoff system that includes multiple rounds of matches. Teams compete based on their regular season standings to qualify for the playoffs.
What factors influence the odds for the MLS Western Conference Champion?
Odds are influenced by team performance during the regular season and playoff matches. Key injuries, player transfers, and match results can also impact the odds significantly.
When does trading close for the MLS Western Conference Champion market?
Trading for this market closes on December 12, 2026. This deadline is set to ensure all bets are placed before the final playoff match determines the champion.
What does the MLS Western Conference Champion prediction market track?
The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Polymarket in one place. Each price reflects the market’s implied probability, not a guaranteed result.
What are the latest MLS Western Conference Champion odds?
The latest available prices are Vancouver Whitecaps FC: 39.5¢ on Kalshi, 40.5¢ on Polymarket; St. Louis City SC: 12.5¢ on Kalshi, 11.0¢ on Polymarket; FC Dallas: 11.0¢ on Kalshi, 11.5¢ on Polymarket; San Jose Earthquakes: 9.5¢ on Kalshi, 9.5¢ on Polymarket. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity.