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%

BETA
Dashboards
Insights
Indices
API
Tour
All
Trending
Breaking
New
Ending Soon
Politics
Sports
Elections
Crypto
Companies
Financials
Economics
Other
Entertainment
Science and Technology
Pro Baseball Championship Series Matchup
kalshi

Pro Baseball Championship Series Matchup

Volume:
$4,319,631

Tampa Bay vs Milwaukee

 - Kalshi

Tampa Bay vs Milwaukee - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 19, 2026

Closed: Oct 19, 11:09 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

Tampa Bay vs Milwaukee

View
100%
21%
Yes 100¢No 0¢
—
N/A
$580,382
N/A
N/A
$231,854
Settled
Yes
kalshi

Tampa Bay vs Los Angeles D

View
0%
4%
Yes 0¢No 100¢
—
N/A
$444,138
N/A
N/A
$191,457
Settled
No
kalshi

New York Y vs Los Angeles D

View
0%
4%
Yes 0¢No 100¢
—
N/A
$322,367
N/A
N/A
$175,896
Settled
No
kalshi

Cleveland vs Milwaukee

View
0%
20%
Yes 0¢No 100¢
—
N/A
$228,393
N/A
N/A
$106,994
Settled
No
kalshi

New York Y vs Milwaukee

View
0%
4%
Yes 0¢No 100¢
—
N/A
$165,755
N/A
N/A
$91,253
Settled
No
kalshi

Boston vs Los Angeles D

View
0%
2%
Yes 0¢No 100¢
—
N/A
$146,566
N/A
N/A
$91,146
Settled
No
kalshi

Cleveland vs Los Angeles D

View
0%
2%
Yes 0¢No 100¢
—
N/A
$132,522
N/A
N/A
$77,851
Settled
No
kalshi

New York Y vs San Diego

View
0%
1%
Yes 0¢No 100¢
—
N/A
$131,604
N/A
N/A
$108,801
Settled
No
kalshi

Chicago WS vs Chicago C

View
0%
1%
Yes 0¢No 100¢
—
N/A
$129,855
N/A
N/A
$101,740
Settled
No
kalshi

Tampa Bay vs Atlanta

View
0%
2%
Yes 0¢No 100¢
—
N/A
$126,515
N/A
N/A
$96,971
Settled
No
kalshi

Chicago WS vs Los Angeles D

View
0%
9%
Yes 0¢No 100¢
—
N/A
$110,876
N/A
N/A
$79,677
Settled
No
kalshi

Tampa Bay vs San Diego

View
0%
5%
Yes 0¢No 100¢
—
N/A
$105,735
N/A
N/A
$82,510
Settled
No
kalshi

New York Y vs Atlanta

View
0%
1%
Yes 0¢No 100¢
—
N/A
$102,742
N/A
N/A
$77,354
Settled
No
kalshi

Boston vs Milwaukee

View
0%
1%
Yes 0¢No 100¢
—
N/A
$96,402
N/A
N/A
$82,944
Settled
No
kalshi

Chicago WS vs Milwaukee

View
0%
5%
Yes 0¢No 100¢
—
N/A
$90,789
N/A
N/A
$69,438
Settled
No
kalshi

Chicago WS vs San Diego

View
0%
4%
Yes 0¢No 100¢
—
N/A
$88,702
N/A
N/A
$68,709
Settled
No
kalshi

Boston vs Philadelphia

View
0%
Yes 0¢No 100¢
—
N/A
$85,654
N/A
N/A
$73,447
Settled
No
kalshi

Boston vs Atlanta

View
0%
1%
Yes 0¢No 100¢
—
N/A
$83,644
N/A
N/A
$68,368
Settled
No
kalshi

Chicago WS vs Atlanta

View
0%
1%
Yes 0¢No 100¢
—
N/A
$80,364
N/A
N/A
$69,588
Settled
No
kalshi

Houston vs Los Angeles D

View
0%
2%
Yes 0¢No 100¢
—
N/A
$64,381
N/A
N/A
$38,844
Settled
No
kalshi

New York Y vs Philadelphia

View
0%
4%
Yes 0¢No 100¢
—
N/A
$62,149
N/A
N/A
$43,763
Settled
No
kalshi

Boston vs San Diego

View
0%
4%
Yes 0¢No 100¢
—
N/A
$60,143
N/A
N/A
$59,298
Settled
No
kalshi

Boston vs Chicago C

View
0%
Yes 0¢No 100¢
—
N/A
$54,417
N/A
N/A
$53,745
Settled
No
kalshi

New York Y vs Chicago C

View
0%
1%
Yes 0¢No 100¢
—
N/A
$51,323
N/A
N/A
$42,806
Settled
No
kalshi

Cleveland vs San Diego

View
0%
1%
Yes 0¢No 100¢
—
N/A
$44,544
N/A
N/A
$36,590
Settled
No
Total markets: 25 of 225

Description

This event concerns which two Major League Baseball teams will face each other in the Pro Baseball Championship Series. The market will resolve based on the official confirmation of the matchup between any combination of eligible teams from both the American and National Leagues.

Kalshi

The Pro Baseball Championship Series matchup is confirmed when both teams secure the right to participate through winning prerequisite games, meeting tournament criteria, receiving selection, or otherwise officially advancing. Resolution occurs immediately upon qualification of both teams, not when the game is actually played. Each market represents a specific pairing of two teams that could potentially meet in the Championship Series.

Frequently asked questions

Typically, prediction market odds tend to align with those offered by sportsbooks, but they can diverge based on information available to traders. Sportsbooks set initial lines based on statistical models and expert analysis, while this market reflects the collective wisdom of individuals actively trading and updating their beliefs. If a significant number of traders believe a sportsbook is mispricing a potential matchup, they can express that view by trading on Kalshi, potentially causing the odds to move in a different direction. This dynamic can lead to prediction markets being more accurate than traditional odds.

On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing different potential World Series matchups, and the price of each contract reflects the probability of that outcome occurring. As more traders buy a contract, its price increases, indicating a higher perceived probability. Conversely, selling pressure lowers the price. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price movements are driven by supply and demand, with traders constantly adjusting their positions based on new information and their own analysis of the teams' chances. This creates a dynamic and efficient way to forecast the final matchup.

This market resolves around Nov 1, 2026, with the outcome confirmed once the actual teams competing in the Pro Baseball Championship Series are verified against credible public reporting. The market will settle to 100 for the correct matchup and 0 for all others. The resolution will be based on the official announcement of the teams participating in the series, as reported by major sports news outlets and the league itself. Traders should monitor official announcements for the definitive outcome of this market.

Several factors could significantly influence the probabilities reflected in this market. Major player injuries, unexpected team performance during the regular season, and even managerial changes can all shift expectations. Any news regarding pitching rotations, key player health, or significant trades will likely cause trading activity and price adjustments. Additionally, the outcomes of important games leading up to the playoffs, and the performance of teams in the playoff rounds themselves, will be closely watched by traders and could lead to substantial movements in the odds for the World Series matchup.