TOTAL VOLUME:

$154.4b

24H VOL:

$230,589,906

24H TRANSACTIONS:

2,984,028,936

OPEN INTEREST:

$1,885,293,300

410,482

Markets across

40,213

events

MATCHED EVENTS:

4,340

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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Pro Baseball Championship Winning League
kalshi

Which league will win the championship?

Volume:
$97,706

NL

 - Kalshi

NL - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 28, 2026

Closed: Oct 28, 11:16 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

NL

View
100%
6%
Yes 100¢No 0¢
—
N/A
$63,774
N/A
N/A
$26,129
3w 6d 15h
Yes
kalshi

AL

0%
4%
Yes 0¢No 100¢
—
N/A
$33,932
N/A
N/A
$18,842
3w 6d 15h
No
Total markets: 2

Description

This event tracks which professional baseball league will produce the champion of the 2026 season. It focuses on whether the winning team will come from the American League or the National League, reflecting the structure of Major League Baseball's two primary leagues.

Kalshi

The event determines the league affiliation of the team that wins the 2026 Pro Baseball Championship. A team's league affiliation is defined by its official Major League Baseball (MLB) designation at the start of the championship. If the championship winner belongs to the American League, the 'AL' market resolves to Yes. Conversely, if the winner is from the National League, the 'NL' market resolves to Yes. The rules clarify that league designation is fixed at the championship's commencement and that Kalshi has no official affiliation with MLB. Both markets are mutually exclusive and exhaustive, with exactly one resolving to Yes based on the winner's league.

Frequently asked questions

On Kalshi, the dashboard for the MLB championship market tracks the current odds, price history, and 24-hour trading volume. You’ll find a visual representation of how the market is pricing different outcomes, allowing you to see which teams are currently favored to win. The volume of $97,706 and 24-hour volume of $16,655 indicate how actively traders are participating in this market. This provides insight into the overall interest and conviction surrounding potential winners.

Currently, prediction market odds often reflect a different perspective than traditional analyst forecasts. While analysts rely on statistical modeling and team performance, this market incorporates a broader range of information, including sentiment, news events, and even unexpected developments like injuries. It's common to see discrepancies between the implied probability from this market and expert predictions, especially early in the season. These differences can highlight areas where the 'wisdom of the crowd' diverges from conventional wisdom, offering a unique view of potential outcomes.

On Kalshi, this market is priced through a continuous auction mechanism where traders buy and sell contracts representing different outcomes. The price of each contract reflects the market's collective assessment of the probability of that outcome occurring. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders believe an outcome is likely, the higher the contract price will rise. Conversely, if sentiment shifts, the price will decrease. This dynamic pricing allows the market to quickly incorporate new information and adjust its predictions in real-time, creating a constantly evolving view of the championship race.

This market resolves around Nov 30, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on which team wins the Pro Baseball Championship, as officially declared by Major League Baseball. The final result will be determined by the official standings and playoff results, ensuring a transparent and objective outcome. Traders will then be paid out based on the final outcome and their positions in this market.

Several signals or events could significantly move this market. Major player injuries, unexpected team trades, or shifts in team performance during the regular season and playoffs are all likely catalysts. Significant news regarding team management or coaching changes could also impact the odds. Furthermore, unexpected weather events affecting key games, or even changes in public sentiment driven by media coverage, could all influence trading activity and shift the probabilities reflected in this market. Monitoring these factors will be crucial for understanding market movements.