Best betting promos and sportsbooks for MLB prop bets [September 18, 2026]

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The Arizona Diamondbacks face off against the New York Yankees in game one of their three game series on Friday night.After losing their last two games in a row, the Arizona Diamondbacks odds of making the playoffs have declined, sitting 3.5 games back for the last wildcard spot in the NL.Luckily for the Diamondbacks, they will be able to set a scoring pace too fast for the New York Yankees to keep up with while Eduardo Rodriguez neutralizes a lineup who struggles to make contact.With fifteen games taking place on Friday night, there are a wide range 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 betsFind the best promos and sportsbooks to use for today’s MLB prop bets.New York Yankees vs Arizona Diamondbacks (9:40pm, EST)Eduardo Rodriguez Under 5.5 Hits Allowed (-130) at BetMGM SportsbookEven when littered with high quality talent, the New York Yankees have been abysmal at the plate, entering the final stretch of the season ranked well below league average in Hit Rate and in On Base Percentage.Their inability to make contact brings in a high amount of negative variance into their contests, making it difficult for them to string together their wins.Heading into Friday night’s contest against the Arizona Diamondbacks, the Yankees will continue to underwhelm at the plate as they face off against Eduardo Rodriguez who is averaging an ERA of 2.62 and a FIP of 3.74 while giving up less than one Hit Against per inning.Especially with the Diamondbacks back end smothering the Yankees gaps in the outfield, fielding a group who ranks second overall in Fielding Percentage.Eduardo Rodriguez Over 17.5 Total Outs (-115) at BetMGM SportsbookWith Rodriguez keeping the Yankees off the bases while creating Whiffs at a high rate, the Diamondbacks pitching staff will allow him to go the full length of his start, increasing his chances of clearing the over on his Outs prop.If you want to diversify your risk, place a separate wager on Rodriguez to stay under the total of 2.5 on his Earned Runs prop as well.Kansas City Royals vs Pittsburgh Pirates (6:40pm, EST)Paul Skenes Over 5.5 Strikeouts (-130) at FanDuel SportsbookEven though he has underperformed per his standards, the Pittsburgh Pirates Paul Skenes has still been efficient this season, averaging a FIP of 3.23 and a WHIP of 1.130.Skenes success on the mound stems from his aggression and elite command of the ball, generating more than one Strikeout per inning.In a favorable matchup against the Kansas City Royals, expect Skenes to round back into dominant form by taking advantage of a lineup who resides in the bottom half of the board in Hit Rate, Walk Rate, and in On Base Percentage.For some more exposure, escalator bet Skenes Strikeout prop by placing smaller wagers on his alternate overs at the best available odds across multiple sportsbooks.Salvador Perez Under 0.5 Total Hit (+125) at BetMGM SportsbookSince the start of the regular season, Salvador Perez has been unable to make contact at a high rate, generating less than one Hit per game and a .229 Batting Average.With Perez incapable of matching Skenes output while he aggressively attacks the strike zone, the Royals slugger will continue to struggle to barrel up the ball and be held without a Hit.San Francisco Giants vs Los Angeles Dodgers (10:15pm, EST)San Francisco Giants Team Total Under 2.5 (+101) at Caesars SportsbookEven after reconfiguring their lineup, the San Francisco Giants were unable to play at a competitive level this season, jockeying with the Colorado Rockies for last place in the NL West.While they were able to make contact at a high rate, they were unable to string together their Hits, ranking in the bottom fifteen in Runs Scored, RBIs, On base Percentage, and in OPS.Unfortunately for the Giants, negative regression looms large over their contact rate against the reigning World Series champions as they face off against Tyler Glasnow who is averaging an ERA of 3.50, a WHIP of 0.973, and a FIP of 2.93.Especially with the Dodgers lowering the probability of Glasnow getting countered by a Hit, surrounding their pitcher with a defense who ranks in the top-2 in Defensive Efficiency.About the authorKody MalstromKody 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.Commercial content notice: Taking one of the sportsbooks offers featured in this article may result in a payment to talkSPORT. 21+. T&Cs apply. 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