Pro Baseball Playoff Qualifiers
Leader sits at 92% across 19 bound outcomes, runner-up at 84%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.
Leader probability
Milwaukee
Outcomes
19
winner-take-all
Runner-up
84¢
Atlanta
Spread
8pp
contested
24h volume
$3K
modest
Closes
Nov 1, 2026
133 days
Venue
Kalshi
19 bound
30-day trend
Bracket family
How the bracket ladder is priced.
Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.
Cluster 1
Pro Baseball Playoff Qualifiers
Pro Baseball Playoff Qualifiers: St. Louis
KXMLBPLAYOFFS-26-STL
Pro Baseball Playoff Qualifiers: New York M
KXMLBPLAYOFFS-26-NYM
Pro Baseball Playoff Qualifiers: Detroit
KXMLBPLAYOFFS-26-DET
Pro Baseball Playoff Qualifiers: Washington
KXMLBPLAYOFFS-26-WSH
Pro Baseball Playoff Qualifiers: Boston
KXMLBPLAYOFFS-26-BOS
Pro Baseball Playoff Qualifiers: Atlanta
KXMLBPLAYOFFS-26-ATL
Pro Baseball Playoff Qualifiers: Chicago WS
KXMLBPLAYOFFS-26-CWS
Pro Baseball Playoff Qualifiers: Pittsburgh
KXMLBPLAYOFFS-26-PIT
Pro Baseball Playoff Qualifiers: Toronto
KXMLBPLAYOFFS-26-TOR
Pro Baseball Playoff Qualifiers: Texas
KXMLBPLAYOFFS-26-TEX
Pro Baseball Playoff Qualifiers: Miami
KXMLBPLAYOFFS-26-MIA
Pro Baseball Playoff Qualifiers: Chicago C
KXMLBPLAYOFFS-26-CHC
Pro Baseball Playoff Qualifiers: Cleveland
KXMLBPLAYOFFS-26-CLE
Pro Baseball Playoff Qualifiers: San Diego
KXMLBPLAYOFFS-26-SD
Pro Baseball Playoff Qualifiers: Milwaukee
KXMLBPLAYOFFS-26-MIL
Pro Baseball Playoff Qualifiers: Houston
KXMLBPLAYOFFS-26-HOU
Pro Baseball Playoff Qualifiers: Cincinnati
KXMLBPLAYOFFS-26-CIN
Pro Baseball Playoff Qualifiers: Seattle
KXMLBPLAYOFFS-26-SEA
Pro Baseball Playoff Qualifiers: Arizona
KXMLBPLAYOFFS-26-AZ
Analysis
This probability reflects the aggregate expected likelihood that one of the five listed MLB teams will qualify for the 2026 playoffs. At 94%, it indicates high certainty that at least one of these franchises will secure a postseason spot, though the specific winner remains uncertain across the contracts. The current season record, remaining games, and divisional standings drive this assessment. Teams with higher contract prices (Atlanta at 91¢, Cleveland at 39¢) are viewed as more likely playoff qualifiers, while lower-priced teams reflect increased competitive barriers. The primary catalyst determining outcomes will be regular-season performance through the end of October 2026, when the playoff field is finalized. Weather, injuries, and mid-season trades could materially shift individual team probabilities, though the aggregate 94% reflects confidence that the market's expectations of playoff qualification remain stable across this cohort.
- ›Win-loss record and remaining schedule gap between each team and the playoff cutline as of early May 2026
- ›Trading deadline activity (late July/early August) and whether teams add or subtract playoff-contending talent
- ›Injury status of key roster players, particularly starting pitchers and offensive core contributors
- ›Historical playoff qualification rates for teams at similar win-percentage levels with equivalent games remaining
- ›Head-to-head competitive strength within divisions and wildcard positioning relative to other MLB conferences
What moved the line
- Jun 21Atlanta↑12pp84→96¢ · Kalshi
- Jun 20San Diego↓11pp30→19¢ · Kalshi
- Jun 15Chicago WS↑10pp40→50¢ · Kalshi
- Jun 17San Diego↓10pp32→22¢ · Kalshi
- Jun 15St. Louis↓9pp43→34¢ · Kalshi
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These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.
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How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.
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