MLB 3-leg parlay picks for August 9, 2026

As the Mariners prepare to host the Rays, all eyes should be on Victor Mesa Jr. when considering the 'Under 3.5' on his hits, runs, and RBIs. Despite his undeniable talent, Vic has faced a bit of a rough patch lately, struggling to find his rhythm against right-handed pitching. With the Rays’ Tyler Glasnow on the mound, this matchup tilts even more in favor of the under. Glasnow has been a strikeout machine, boasting a 32% strikeout rate this season, which could spell trouble for Mesa. Additionally, the Mariners have struggled to string together consistent offensive outings, especially against pitchers of Glasnow's caliber. With Seattle’s lineup recently sputtering and Mesa's recent numbers dipping, the odds lean sharply towards him being held under that critical 3.5 mark. This game could turn into a pitcher's duel, making the under a compelling play for this talented young hitter.

Colt Emerson Under 0.5 Hits+Runs+RBIs (-145)

As the Mariners gear up to host the Rays, all eyes will be on Colt Emerson, but it might be a quieter day for the promising young slugger. Emerson has struggled to find his rhythm lately, particularly against tough left-handed pitchers, and with Tampa Bay sending out their ace who boasts a stellar strikeout rate, he could be in for a long afternoon. The Rays’ pitching staff, known for their ability to stifle opposing offenses, has been particularly effective on the road, limiting hits and runs. Emerson’s recent trend of underwhelming performances against quality pitching makes the 'Under 0.5' on his hits, runs, and RBIs a compelling wager. Combine that with the Mariners' recent struggles to produce at the plate, and it’s easy to see why this bet has strong potential. Expect Emerson to face a challenging matchup that could keep him off the scoreboard today.

Chandler Simpson (TBR) Under 1.5 Hits (-145)

As the Mariners host the Rays, all eyes will be on Chandler Simpson, but the trends suggest a quiet day at the plate for him. Simpson’s recent form has been anything but explosive; he's batting only.215 over the last month and has struggled against right-handed pitching, which is what he'll face today. The Rays’ pitching staff has been a force lately, boasting a stingy 3.30 team ERA on the road. Tampa’s ace, who’s likely to take the mound, thrives on inducing weak contact, making it tough for hitters like Simpson to find their rhythm. With the odds leaning heavily toward the under on his hits, it’s hard to envision him breaking past that 1.5 mark today. Given the Mariners' inconsistent offensive output lately, betting on Simpson to stay under seems like a savvy play as he faces tough competition in a crucial matchup.

That is the whole read. Every leg above is our own number against the price on the board at the time we wrote this, and the price can move before you get on. Bet what you can afford to lose. If betting stops being fun, take a break.