Best MLB Parlay Picks Today (Diamondbacks, Dodgers Headline Whopper of Parlay)

BOOM! We did it. Thanks to Paul Goldschmidt's walk-off grand slam in the bottom of the 10th inning, we cashed our first big parlay!

You know what they say, the first step is always the hardest. Now that the first domino has fallen, I'm confident we'll never lose a parlay again.

While that may be optimistic, there's a ton of value on today's loaded MLB slate and I'm ready to strike. BetSided may not be ready to change their logo to my silhouette quite yet, but a few more of these cashes and we may force their hand. Move over, Jerry West, I'm gunning for back-to-back.

Using the odds from WynnBET Sportsbook, let's take a look at my favorite MLB parlay picks of the day:

Who is the BetSided team wagering on tonight? 

Check out our live streaming show, "Daily Betslip" every day at 5 pm ET!

Best MLB Parlay Picks Today

Marlins vs Rays Under 6.5 (-115)

The best pitching matchup of the day is at Tropicana Field as Pablo Lopez takes on Shane McClanahan. Lopez has allowed precisely one run in 19 road innings year and I've got confidence he'll slow the Rays down. Tampa Bay has scored at least six runs in five straight but they've been lucky to face string of poor pitchers in that stretch.

Both teams were off yesterday so their bullpens should be fully rested. The Marlins are 28th in OPS against left-handed pitchers in May and McClanahan has allowed just one run in his last 14 innings. He's in the 92nd percentile in expected ERA and 97th in strikeout percentage, so I think his dominance continues against an overwhelmed Miami lineup.

Dodgers -1.5 (-130) vs Nationals

BetSided's Iain MacMillan laid out the case for betting Walker Buehler to win the Cy Young and his rise to the top begins today. He has a 1.29 ERA in three road starts and faces a Nationals lineup that ranks 29th in OPS at home this month. Washington has now scored one or fewer runs in four of their last five, and three or fewer runs in 14 of their previous 17 games.

It's no coincidence they lost all 14 of those games, as their pitching staff is among the worst in baseball. Josiah Gray starts today and he's got a 7.11 ERA in four home appearances. The Dodgers lineup is on fire, averaging 6.24 runs per game in May and I see no reason to expect Gray to slow them down.

Back Los Angeles to improve to 25-16 on the run line as a favorite and push the Nationals to 6-16 on the run line at home.

Red Sox vs White Sox First Five Innings Under 4.0 (-120)

Boston's lineup is flaming hot but I think they come back to earth against Dylan Cease. The 26-year-old has been sublime this year, ranking in the 95th percentile in expected ERA, 97th in expected batting average and 98th in strikeout percentage. He limited the Red Sox to one run in five innings earlier this month and I expect another strong performance today.

Opposing Cease and his marvelous mustache will be Nick Pivetta, who held the White Sox scoreless in six innings in the same game Cease shut Boston down. Pivetta struggled early in the 2022 campaign but has a 0.82 ERA in his last three outings. The under is 13-5-2 in Chicago's last 20 matchups and 11-4-3 in Boston's last 18 as an underdog. I'll avoid any potential bullpen trouble and focus in on the first five when I know Cease and Pivetta will be in control.

Diamondbacks -1.5 (-105) vs Royals

The Royals have lost five straight on the run line while the Diamondbacks have won five straight. Zac Gallen hasn't allowed multiple runs in any of his seven starts en route to a 3-0 record and 1.14 ERA. He's in the 97th percentile in expected ERA and expected batting average and could soon make a push for the Cy Young.

Jonathan Heasley is making just his third start of the year against an Arizona lineup that ranks fifth in OPS against right-handed pitchers in May. He's got Kansas City's league-worst bullpen backing him up, so I expect plenty of runs for the scorching-hot Diamondbacks.

Mariners (-160) vs Athletics

I broke this bet down in detail in my preview, but I love George Kirby's chances to get his first major league win against an Athletics lineup that can't hit water falling out of a boat.

Oakland is dead-last in OPS against right-handed pitchers this year and strike out a ton. Kirby has nasty stuff and fantastic command. Seattle is averaging five runs per game in their last six, a mark the A's have reached just twice in their last 11 contests. The Athletics are 1-8 in their last nine as an underdog and have lost 13 consecutive games to the Mariners. Both of those pathetic streaks of futility continue as Kirby shines.

Recap

The "Move Over, Jerry West" Parlay (+1824)

• Marlins vs Rays Under 6.5 (-115)

• Dodgers -1.5 (-130) vs Nationals

• Red Sox vs White Sox First Five Under 4.0 (-120)

• Diamondbacks -1.5 (-105) vs Royals

• Mariners (-160) vs Athletics

I know, I know. You win one parlay and pile five games on the next day?? Slow your britches, Joe. To quote Captain America, "No, I don't think I will."

Head to WynnBET to get your parlay locked in before the sportsbooks catch on to us and move the lines. We've got tons of value on the board today and I'm hungry for more. It's time to start a dynasty, baby.

Follow all of Joe Summers' betting picks here.