Best MLB Betting Picks and Parlay - Monday May 15, 2023

Dimers.com is teaming up with Calling Our Shot for the year to provide bettors with the very best MLB picks from the COS crew, sourced from the Dimers' MLB Best Bets page to deliver our best MLB parlay of the day. Every week from Monday to Friday, Austin and Logan from Calling Our Shot will be using the power of our predictive analytics models to find their best plays at the ballpark, combining them into a three-leg parlay. Read on for the team's full analysis of our MLB parlay for Monday, May 15.

MORE: Dimers.com's MLB Best Bets for Monday

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MLB Best Bet Parlay For Monday, May 15

PARLAY PICKS	ODDS
Mariners/Red Sox Alternate Total Under 11.5 Runs	-210
Cardinals +1.5	-175
Diamondbacks/Athletics Alternate Total Under 11.5 Runs	-270

Monday MLB Parlay Analysis

Seattle Mariners vs Boston Red Sox, 7:10 PM ET

LEG 1: Under 11.5 Runs (-210) with DraftKings

I see these two offenses regressing, and the alternate under is a great way to kick off this parlay. We have two very capable pitchers on the mound as well, let’s dive in.

Tanner Houck starts for the Red Sox today. Even though his ERA is at 5.26, Houck is certainly capable of getting the swing and misses in the 0-2 count. 

Seattle is 26th in batting average and 19th in OPS on the road. We’ve seen the Mariners struggle to convert runners in scoring position into runs all season long, why would it be different today?

George Kirby starts for the Mariners and he’s been amazing with a 2.62 ERA. Boston is experiencing some regression since their red hot offensive start of the season. 

Over their last 3 games, Boston is only hitting .245. The offensive was unable to hit Mikolas yesterday and he’s a pitch-to-contact guy. Against a strike thrower like Kirby, I believe they once again struggle. 

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Milwaukee Brewers vs St. Louis Cardinals, 7:45 PM ET

LEG 2: Cardinals +1.5 (-175) with DraftKings

The DimersBOT is giving the Cardinals a 5% edge on the moneyline. While I think the Cardinals could win outright (hint: watch our daily YouTube video & you might see us on St. Louis), the +1.5 is a good parlay leg for a safer play.

The Cardinals bats are finally starting to heat up. A 3-0 sweep against the Red Sox should hopefully snowball into some momentum at home against their division rival Brewers.

On paper, the Brewers appear to have the pitching advantage with Peralta vs. Flaherty, but yet this game remains a pick em on the moneyline.

The Cardinals are 5th in Batting Average and 7th in OPS at home. Peralta hunts for strikeouts. Throwing too many pitches into the zone could be detrimental for him. I am confident Flaherty can hold it down. The Cardinals just need to bring their bats.

When we get to the bullpens, I trust the Cardinals bullpen a little more than the Brewers. I like the +1.5 we are getting here. If you’re feeling bold, go moneyline. Go Cardinals!

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Arizona Diamondbacks vs Oakland Athletics, 9:40 PM ET

LEG 3: Under 11.5 Runs (-270) with DraftKings

The final leg is another alternate Under. The regular line for this game sits at 9, which I don’t mind either, but I rather get some cushion at the 11.5 in case it barely goes over.

Everyone is rushing out to their book to hammer the Over and anything associated with the Diamondbacks winning today, and rightfully so; Drew Rucinski has not been good.

But is it crazy to say that Rucinski is due a good start? No, I don’t think so. Rucinski has allowed 5 ER in back to back starts. If he can get us a ‘decent’ start of 2-3, we should be looking good.

Merrill Kelly will start for the Diamondbacks. His 3.18 ERA & 1.15 WHIP are good enough to hold down the Athletics roster.

The Athletics are 27th in Runs per game & 24th in Batting Average. Both bullpens aren’t elite, but with a line like 11.5, we have plenty of wiggle room.

I am confident we can get cash this 3rd leg and walk away with a +217 winner.

Your game not here? Find out who we're betting on for every baseball game on Monday via our MLB Bet Hub, where we deliver you MLB predictions, suggested bets and MLB props, or check out the MLB Betting News section.

*All odds subject to change from time of publishing

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