Best betting promos and sportsbooks for MLB prop bets [June 9, 2026]

The Washington Nationals cap off Tuesday night’s slate of games with a favorable matchup against the San Francisco Giants.

After a turbulent start to the year, the Washington Nationals odds of winning the NL East have declined, sitting 12.0 games back from the Atlanta Braves for first.

Luckily for the Nationals, they will have a great opportunity to chip away at the Braves lead as they face off against the San Francisco Giants Adrian Houser who struggles with keeping opposing runners off the bases.

With fifteen games taking place on Tuesday night, there are plenty of prop bets and markets to wager on which you can read a detailed breakdown of them below.

Best betting promos and sportsbooks for MLB prop bets

Find the best promos and sportsbooks to use for today’s MLB prop bets.

Washington Nationals vs San Francisco Giants (9:45pm, EST)

Adrian Houser Over 5.5 Hits Allowed (-120) at BetMGM Sportsbook

Since the start of the regular season, the Washington Nationals have been able to thrive on offense, climbing into the top half of the board in Hit Rate, RBIs, Runs Scored, On Base Percentage, and in OPS.

Their turnaround on offense helps them avoid falling too deep into a hole, increasing their chances of winning on a nightly basis.

Heading into Tuesday night’s matchup against the San Francisco Giants, expect the Nationals to continue to make contact at a high rate as they face off against Adrian Houser who is averaging an ERA of 5.49 while giving up over one Hit Against per Inning Pitched.

Especially with his back end severely underwhelming in coverage which will widen the width of the Nationals gaps in the outfield, sitting in the bottom five in Fielding Percentage.

Adrian Houser Under 15.5 Total Outs (-165) at BetMGM Sportsbook

With Houser struggling to avoid contact from the opening pitch while putting the Nationals runners in scoring position at a high rate, the Giants will be forced to pull their pitcher off the mound early on in his start to limit the damage, keeping him under the total on his Outs prop.

For some more exposure, place a smaller wager on the Nationals to clear the over of 3.5 on their team total as well.

Cincinnati Reds vs San Diego Padres (9:40pm, EST)

San Diego Padres Team Total Under 3.5 (-130) at BetMGM Sportsbook

After going 2-8 in their last ten games, the San Diego Padres have started to fall behind the Dodgers in the NL West division standings, plummeting their chances of making the playoffs in the process.

Their lack of production on offense makes it difficult for them to match their opponents output, ranking dead last in Contact Rate and in On Base Percentage.

Unfortunately for the Padres, their struggles with making contact are poised to persist against the Cincinnati Reds as they battle it out against Chase Burns who is averaging an ERA of 2.05 and a WHIP of 0.953.

The coverage Burns receives from his defense will also lower the probability of him giving up an Error, playing alongside a defense who ranks above league average in Defensive Efficiency.

Manny Machado Under 0.5 Total Hit (+125) at BetMGM Sportsbook

Manny Machado’s regression in the top of the Padres order makes them vulnerable to slow starts, generating less than one Hit per game and a .169 Batting Average.

With Burns avoiding contact while aggressively attacking the strike zone, expect Machado to continue to struggle with making contact and be neutralized at the plate against the Reds pitcher.

Texas Rangers vs Kansas City Royals (7:40pm, EST)

Stephen Kolek Over 3.5 Strikeouts (-147) at FanDuel Sportsbook

While the Kansas City Royals have underwhelmed as a whole, Stephen Kolek has been one of their few consistent sources of production, kicking off his year with an ERA of 3.32 and a WHIP of 0.974.

Even though Kolek struggles with generating Strikeouts, he still excels at avoiding contact, giving up less than one Hit Against per Inning Pitched.

In a favorable matchup against the Texas Rangers, expect Kolek to create Whiffs at a higher rate by taking advantage of a lineup who ranks well below league average in Contact Rate and in Strikeout Rate.

To help increase your risk on Kolek, escalator bet his Strikeout prop by placing smaller wagers on his alternate overs at the best available odds across multiple sportsbooks.

About the author

Kody Malstrom

Kody Malstrom is a professional sports bettor and sports betting journalist with six years of experience covering a vast majority of sports. He covers football, basketball, hockey, baseball, and the UFC in written and video form.

Born and raised in Michigan, Kody is a Detroit sports fan who spends all of his Sundays in the fall rooting for the Detroit Lions and Saturdays watching as much College Football as possible. In the winter, he shifts his focus to the Detroit Red Wings and Pistons while simultaneously rooting for his North Carolina Tar Heels.

When he is not staring at betting markets, you can find Kody at the beach or snowboarding down a mountain, depending on the time of the year.

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