2026 World Series Odds: Sportsbooks vs. Prediction Markets
2026 MLB World Series Odds
World Series market snapshot
Milwaukee Brewers lead this comparison, ranked by each team’s best available price. Their best price is +110 at BetOnline, equivalent to 47.6% implied probability before removing sportsbook margin.
Leading contenders
- Milwaukee Brewers +110BetOnline · 47.6% implied
- Los Angeles Dodgers +360BetOnline · 21.7% implied
- Cleveland Guardians +425BetMGM · 19.1% implied
Largest recorded price moves
- Los Angeles Dodgers +190 → +360-12.7 pp implied · Best now at BetOnline
- Milwaukee Brewers +175 → +110+11.3 pp implied · Best now at BetOnline
- Cleveland Guardians +850 → +425+8.5 pp implied · Best now at BetMGM
- Tampa Bay Rays +350 → +500-5.6 pp implied · Best now at BetOnline
Swipe the table to compare every sportsbook — the team column stays in place.
| # | Team | Best | 14d Trend | Kalshi | FanDuel | DraftKings | BetMGM | BetRivers | BetOnline |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Milwaukee Brewers 47.6% implied | +110 BetOnline | +33.3pp | 44.8¢ | +105 | +105 | +105 | +100 | +110 |
| 2 | Los Angeles Dodgers 21.7% implied | +360 BetOnline | -9.0pp | 20.65¢ | +330 | +350 | +340 | +325 | +360 |
| 3 | Cleveland Guardians 19.1% implied | +425 BetMGM | +11.4pp | 17.4¢ | +420 | +400 | +425 | +425 | +425 |
| 4 | Tampa Bay Rays 16.7% implied | +500 BetOnline | +5.6pp | 16.6¢ | +460 | +475 | +475 | +475 | +500 |
Sportsbooks vs. Kalshi
Largest differences among teams with quotes from both sources. Kalshi prices are Yes bid/ask midpoints; the sportsbook percentage uses the best available price.
| Team | Best book price | Book implied | Kalshi midpoint | Difference |
|---|---|---|---|---|
| Milwaukee Brewers | +110BetOnline | 47.6% | 44.8¢ | -2.8 pp |
| Cleveland Guardians | +425BetMGM | 19.1% | 17.4¢ | -1.7 pp |
| Los Angeles Dodgers | +360BetOnline | 21.7% | 20.7¢ | -1.1 pp |
Past week: World Series price changes
Milwaukee Brewers shortened from +380 to +110 in the best available sportsbook price, a +26.8 percentage-point change in implied probability.
Los Angeles Dodgers drifted from +135 to +360 in the best available sportsbook price, a -20.8 percentage-point change in implied probability.
Cleveland Guardians shortened from +2000 to +425 in the best available sportsbook price, a +14.3 percentage-point change in implied probability.
Compare 2026 World Series odds across available sportsbooks and Kalshi, see which teams have the shortest prices, and follow recorded changes as the market moves. The board below includes a current market snapshot, best available sportsbook prices, and the time each source was last checked.
How to use this World Series odds tracker
Start with the Best column to find the highest available American price for each team among the sportsbooks listed. The table is ranked by each team’s best price, from shortest to longest. The sportsbook holding the best price can differ by team and can change between updates.
The market snapshot identifies the current favorite and leading contenders from the same data used in the table. Recorded price moves compare two saved observations and show their actual timestamps. A shorter price means a higher implied percentage; a longer price means a lower implied percentage. These changes describe the market and do not establish why it moved.
Sources, timestamps and calculation methods
Sportsbook outright prices are supplied through The Odds API. The Kalshi column uses the midpoint between the available Yes bid and Yes ask in the 2026 World Series market. A midpoint helps compare quoted markets but is not necessarily a price you can trade at.
“Checked” identifies the last successful collection, while sportsbook quote timestamps show when the provider reports those prices were updated. Collection times are displayed in Eastern time. If a refresh fails, retained sportsbook prices keep their original timestamp and a pending-refresh notice appears. A dash means no qualifying quote is displayed; it is not a zero-percent forecast.
American odds are converted to implied percentages using 100 ÷ (odds + 100) for positive prices, or the absolute odds ÷ (absolute odds + 100) for negative prices. For example, +500 implies 16.7%; this is an illustration, not a current team quote. Sportsbook percentages include margin. Trading fees, bid/ask spreads and liquidity also affect comparisons with Kalshi.
Trend lines use the available daily observations in the last 14 days. Movement summaries appear only when matching observations exist. Missing quotes are not treated as eliminations, and the tracker does not invent prices for missed collections.
World Series odds FAQ
Who is the current World Series favorite?
Milwaukee Brewers lead this comparison, ranked by each team’s best available price. Their best price is +110 at BetOnline, equivalent to 47.6% implied probability before removing sportsbook margin. Snapshot checked Oct 13, 2026 6:13 pm EDT.
Why do sportsbooks offer different prices for the same team?
Each sportsbook posts its own prices. The comparison shows the quotes supplied by the feed, which may have different update times and availability. Confirm the current price, market rules and availability directly with the provider before placing a wager or trade.
Does a higher Kalshi percentage mean a sportsbook bet has value?
A difference identifies a pricing disagreement to investigate. It does not, by itself, establish an edge. The sportsbook percentage includes margin, while the Kalshi figure is a bid/ask midpoint. Executable prices, fees, liquidity and settlement rules matter.
Why might a team or a movement figure be missing?
A team needs an available qualifying sportsbook quote to appear on this board. Kalshi quotes and historical observations have their own availability. A missing quote does not establish that a team has been eliminated. Price movement also requires comparable saved observations for that team.
More MLB market context
Use the MLB playoff picture for postseason context and MLB odds movers to follow changes in individual game markets.
Jason Ziernicki is the founder of CLEATZ and has worked in the online sports betting industry since 2012. At CLEATZ, he focuses on public betting data, sportsbook line movement, prediction markets and data-driven sports betting tools.