MLB Preseason Odds (MT, US)
May 2026
15 matches · 2 days
15 upcoming matches.
We compare MLB Preseason odds across 4 bookmakers in MT, United States
Get these odds overlaid directly on BetOpenly, Kalshi, Polymarket, and more.
OddsGuard delivers comprehensive MLB Preseason odds comparison for Montana bettors, aggregating lines from Sports Bet Montana and other regulated sportsbooks operating in the state. Since Montana legalized online sports betting, bettors can access real-time line movements and identify the best value across multiple licensed operators without leaving the platform.
While Montana lacks a local MLB franchise, Treasure State baseball fans gravitate toward regional powerhouses like the Colorado Rockies and Seattle Mariners, with many following American League West and National League West divisions closely. Spring training generates significant betting interest as Montana's harsh winters give way to baseball season, making MLB Preseason odds Montana markets particularly active among bettors eager to capitalize on early-season inefficiencies and roster uncertainty that creates value opportunities.
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Today
Detroit Tigers vs Toronto Blue Jays
Sat, May 16, 6:10 PM
| Bookmaker | Detroit Tigers | Toronto Blue Jays |
|---|---|---|
| Best Odds | -114 BetOpenly | +114 BetOpenly |
 BetAnySports | -118 | -102 |
 BetOpenly | -114 | +114 |
 Kalshi | -118 | +113 |
 Polymarket | -118 | +113 |
St. Louis Cardinals vs Kansas City Royals
Sat, May 16, 7:15 PM
| Bookmaker | St. Louis Cardinals | Kansas City Royals |
|---|---|---|
| Best Odds | -109 Kalshi | +109 BetOpenly |
| BetAnySports | -119 | -101 |
| BetOpenly | -114 | +109 |
| Kalshi | -109 | +104 |
| Polymarket | -109 | +104 |
Colorado Rockies vs Arizona Diamondbacks
Sat, May 16, 8:10 PM
| Bookmaker | Colorado Rockies | Arizona Diamondbacks |
|---|---|---|
| Best Odds | +133 Kalshi | -132 BetOpenly |
| BetAnySports | +115 | -135 |
| BetOpenly | +132 | -132 |
| Kalshi | +133 | -139 |
| Polymarket | +127 | -133 |
Pittsburgh Pirates vs Philadelphia Phillies
Sat, May 16, 9:05 PM
| Bookmaker | Pittsburgh Pirates | Philadelphia Phillies |
|---|---|---|
| Best Odds | +160 BetOpenly | -156 Polymarket |
| BetAnySports | +146 | -167 |
| BetOpenly | +160 | -161 |
| Kalshi | +156 | -164 |
| Polymarket | +150 | -156 |
Washington Nationals vs Baltimore Orioles
Sat, May 16, 9:05 PM
| Bookmaker | Washington Nationals | Baltimore Orioles |
|---|---|---|
| Best Odds | +102 BetOpenly | +100 Polymarket |
| BetAnySports | -112 | -108 |
| BetOpenly | +102 | -102 |
| Kalshi | +100 | +100 |
| Polymarket | -104 | +100 |
Tampa Bay Rays vs Miami Marlins
Sat, May 16, 9:10 PM
| Bookmaker | Tampa Bay Rays | Miami Marlins |
|---|---|---|
| Best Odds | -127 BetOpenly | +128 BetOpenly |
| BetAnySports | -135 | +115 |
| BetOpenly | -127 | +128 |
| Kalshi | -133 | +127 |
| Polymarket | -133 | +127 |
Cleveland Guardians vs Cincinnati Reds
Sat, May 16, 11:10 PM
| Bookmaker | Cleveland Guardians | Cincinnati Reds |
|---|---|---|
| Best Odds | -156 BetOpenly | +159 BetOpenly |
| BetAnySports | -172 | +151 |
| BetOpenly | -156 | +159 |
| Kalshi | -164 | +156 |
| Polymarket | -164 | +156 |
Tomorrow
Houston Astros vs Texas Rangers
Sun, May 17, 12:10 AM
| Bookmaker | Houston Astros | Texas Rangers |
|---|---|---|
| Best Odds | +138 Kalshi | -132 BetOpenly |
| BetAnySports | +120 | -141 |
| BetOpenly | +132 | -132 |
| Kalshi | +138 | -139 |
| Polymarket | +133 | -139 |
Chicago White Sox vs Chicago Cubs
Sun, May 17, 12:10 AM
| Bookmaker | Chicago White Sox | Chicago Cubs |
|---|---|---|
| Best Odds | +102 BetOpenly | -102 BetOpenly |
| BetAnySports | -114 | -106 |
| BetOpenly | +102 | -102 |
| Polymarket | +100 | -104 |
Minnesota Twins vs Milwaukee Brewers
Sun, May 17, 12:10 AM
| Bookmaker | Minnesota Twins | Milwaukee Brewers |
|---|---|---|
| Best Odds | +117 Polymarket | -116 BetOpenly |
| BetAnySports | +102 | -122 |
| BetOpenly | +116 | -116 |
| Kalshi | +113 | -118 |
| Polymarket | +117 | -122 |
Atlanta Braves vs Boston Red Sox
Sun, May 17, 12:15 AM
| Bookmaker | Atlanta Braves | Boston Red Sox |
|---|---|---|
| Best Odds | -128 BetOpenly | +134 BetOpenly |
| BetAnySports | -139 | +119 |
| BetOpenly | -128 | +134 |
| Kalshi | -133 | +127 |
| Polymarket | -133 | +127 |
New York Mets vs New York Yankees
Sun, May 17, 12:15 AM
| Bookmaker | New York Mets | New York Yankees |
|---|---|---|
| Best Odds | +125 BetOpenly | -120 BetOpenly |
| BetAnySports | +114 | -133 |
| BetOpenly | +125 | -120 |
| Kalshi | +117 | -122 |
| Polymarket | +117 | -122 |
Seattle Mariners vs San Diego Padres
Sun, May 17, 12:15 AM
| Bookmaker | Seattle Mariners | San Diego Padres |
|---|---|---|
| Best Odds | -149 Kalshi | +144 Polymarket |
| BetAnySports | -164 | +144 |
| Kalshi | -149 | +144 |
| Polymarket | -149 | +144 |
Los Angeles Angels vs Los Angeles Dodgers
Sun, May 17, 2:38 AM
| Bookmaker | Los Angeles Angels | Los Angeles Dodgers |
|---|---|---|
| Best Odds | +128 BetOpenly | -128 BetOpenly |
| BetAnySports | +116 | -135 |
| BetOpenly | +128 | -128 |
| Kalshi | +122 | -133 |
| Polymarket | +127 | -133 |
Oakland Athletics vs San Francisco Giants
Sun, May 17, 2:40 AM
| Bookmaker | Oakland Athletics | San Francisco Giants |
|---|---|---|
| Best Odds | -122 Polymarket | +129 BetOpenly |
| BetAnySports | -130 | +110 |
| BetOpenly | -128 | +129 |
| Kalshi | -122 | +117 |
| Polymarket | -122 | +117 |
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MLB Preseason Odds Comparison in Montana
MLB Preseason odds in American format display positive numbers for underdogs and negative for favorites. A +150 line means a $100 bet wins $150, while -200 requires $200 to win $100. Montana bettors should focus on moneyline markets during spring training, as preseason games often feature experimental lineups and limited innings from starters, making run totals less predictable than regular season contests.
Key betting markets include moneylines, run totals (over/under), and first-five-inning wagers. Preseason baseball presents unique challenges as managers prioritize player evaluation over wins, creating line value for sharp bettors who track roster moves and pitching rotations. Montana's regulated market ensures competitive odds across licensed operators.
Line shopping becomes crucial during MLB Preseason betting Montana markets, as books often disagree on team strength assessment when rosters remain fluid. OddsGuard's comparison tool helps identify the best available number on each wager.
How do MLB Preseason odds differ from regular season lines?
Preseason odds carry higher variance due to experimental lineups, shorter pitcher outings, and teams prioritizing development over results. Books often post wider spreads and adjust totals more frequently as spring training progresses.
What should Montana bettors watch for in MLB Preseason markets?
Focus on starting pitcher announcements, as many games feature split-squad lineups or bullpen games. Weather delays are common in spring training venues, affecting totals and creating live betting opportunities throughout the slate.
- Run Line
- Baseball's version of the spread, almost always -1.5 / +1.5. The favorite at -1.5 must win by 2+ runs. Unlike football spreads, the run line rarely moves off 1.5.
- Over/Under (Game Total)
- A bet on combined runs scored by both teams. MLB totals typically range from 7 to 10.5, heavily influenced by starting pitchers, ballpark dimensions, and weather.
- First 5 Innings (F5)
- A moneyline, spread, or total that only covers the first five innings. Isolates starting pitcher matchups and removes bullpen variance.
- NRFI / YRFI
- No Run First Inning / Yes Run First Inning. A popular yes/no prop on whether either team scores in the top or bottom of the first inning.
- Listed Pitcher
- A bet condition where your wager is only valid if the listed starting pitcher actually starts. If a pitcher is scratched, the bet is voided.
- Innings Total
- Over/under on the total number of innings played, which can exceed 9 in extra-inning games.
- Moneyline
- A straight-up wager on which side wins. No point spread involved — you simply pick the winner.
- Vig (Juice)
- The bookmaker's commission built into every line. Standard vig is around -110 on each side, meaning you risk $110 to win $100.
- Implied Probability
- The likelihood of an outcome as suggested by the odds. For example, -200 implies a 66.7% chance. Comparing implied probability across bookmakers reveals where value exists.
- Closing Line Value (CLV)
- The difference between the odds you locked in and the odds at the time the market closes. Consistently beating the closing line is the strongest predictor of long-term betting profit.
- Line Movement
- Changes in odds between when a market opens and when it closes. Driven by sharp money, public betting patterns, injuries, and other news.
- Bankroll
- The total amount of money you've set aside specifically for betting. Effective bankroll management — typically risking 1-3% per wager — is essential for surviving variance.
- Unit
- A standardized bet size, typically 1% of your bankroll. Tracking results in units rather than dollars normalizes performance regardless of stake size.
- Hedge
- Placing a bet on the opposite side of an existing wager to lock in a guaranteed profit or reduce exposure, often used with futures or parlays.
- Parlay (Accumulator)
- A single bet combining two or more selections. All picks must win for the parlay to pay out. Higher potential return but significantly lower probability.
- Futures
- Long-term bets on outcomes determined at the end of a season or tournament, such as championship winners, MVP awards, or win totals.
- Live Betting (In-Play)
- Placing wagers while a game is in progress. Odds update continuously based on score, time remaining, and game flow.
- Overround
- The total implied probability across all outcomes in a market. An overround above 100% represents the bookmaker's margin. Lower overround means better value for bettors.
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