Best betting promos and sportsbooks for MLB prop bets [July 27, 2026]

George Kirby and the Seattle Mariners face off against the Texas Rangers in a highly anticipated divisional matchup.

After falling into a slump, the Seattle Mariners odds of winning the AL West have declined, sitting 1.5 games back from the Texas Rangers for first. Luckily for the Mariners, they will have a great opportunity to snap their skid with George Kirby on the mound, using his individual production to neutralize a Rangers lineup who struggles with getting into scoring position.

With twelve games taking place on Monday, 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.

Seattle Mariners vs Texas Rangers (2:35pm, EST)

George Kirby Under 2.5 Earned Runs (-165) at BetMGM Sportsbook

Even though the Texas Rangers have been able to make contact at a higher rate the past few weeks, they have struggled to string together their Hits to get into scoring position, ranking well below league average in RBIs and in Runs Scored. Their lack of consistency leaves them vulnerable to falling into prolonged scoring lulls, digging themselves too deep into a hole for them to climb out of.

Heading into Monday’s divisional contest against the Seattle Mariners, the Rangers struggles on offense will be on full display as they face off against George Kirby who is averaging an ERA of 3.57 and a FIP of 3.24. Especially with his back end narrowing the width of the Rangers gaps in the outfield, fielding a group who ranks above league average in Fielding Percentage.

George Kirby Over 17.5 Total Outs (-175) at BetMGM Sportsbook

With the Rangers struggling to get into scoring position while Kirby neutralizes them at the plate, the Mariners pitching staff will allow him to remain on the mound, increasing his chances of clearing the over on his Outs prop.

If you want to diversify your risk on the Mariners pitcher, place a separate wager on Kirby to stay under the total of 5.5 on his Hits Allowed prop as well.

Cleveland Guardians vs Cincinnati Reds (7:10pm, EST)

Chase Burns Over 6.5 Strikeouts (+111) at FanDuel Sportsbook

A fringe contender for the NL Cy Young award, the Cincinnati Reds Chase Burns has been dominant in his starts this season, averaging an ERA of 2.42, a WHIP of 1.105, and a FIP of 3.34. Burns’ success on the mound can be attributed to his elite power, generating more than one Strikeout per Inning Pitched.

In a favorable matchup against the Cleveland Guardians, Burns will be able to generate Strikeouts at a higher rate by taking advantage of an offense who resides near the bottom of the board in Hit Rate and in Strikeout Rate.

For some more exposure, escalator bet Burns’ Strikeout prop by placing smaller wagers on his alternate overs at the best available odds across multiple sportsbooks.

Petey Halpin Under 0.5 Hits (-125) at BetMGM Sportsbook

Since the start of the regular season, Petey Halpin has severely underwhelmed at the plate, generating less than one Hit per game and a .191 Batting Average.

With Burns creating Whiffs at a higher rate while aggressively painting the strike zone, Halpin will continue to struggle with barreling up the ball and be held without a Hit against the Reds pitcher.

Arizona Diamondbacks vs Pittsburgh Pirates (6:40pm, EST)

Pittsburgh Pirates Team Total Over 4.5 (-110) at FanDuel Sportsbook

After struggling on offense last year, the Pittsburgh Pirates have been able to round back into form this season, ranking in the top-3 in Hit Rate, RBIs, Runs Scored, On Base Percentage, and in OPS.

Their resurgence has helped drastically reduce the amount of negative variance in their contests, making it easier for them to pull away on the scoreboard on a nightly basis.

Fortunately for the Pirates, they will be able to build on their momentum against the Arizona Diamondbacks Merrill Kelly by exploiting an arm who is averaging an ERA of 5.12 and a WHIP of 1.476 while giving up more than one Hit Against per inning.

Even with the Diamondbacks excelling in coverage, Kelly’s lack of command will allow the Pirates to make contact at a higher rate, increasing their probability of finding the gaps on the back end.

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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