Best MLB Bets Today (June 19): Mariners Take Series Opener vs. Red Sox

Jason Green

06/19/2026

Friday has a full slate of baseball action, and we break down the best MLB bets today.

You can line shop for odds and place these wagers at any of the top online sportsbooks in the U.S.

Best MLB bets today

Today's best MLB bets focus on an American League matchup, a National League contest, and a same game parlay (SGP) for an interleague game between the Colorado Rockies and Pittsburgh Pirates. 

Boston Red Sox @ Seattle Mariners -130 

We are taking the Seattle Mariners (39-37), who lead the AL West, in a series opener hosting the Red Sox (29-43), who are in the basement of the AL East. 

The Mariners have won two of their last three games, while the Red Sox have lost four in a row, where they have only totaled eight runs. 

Seattle starter Bryce Miller (3-0, 1.54 ERA, 0.71 WHIP) would rank second in the Majors in ERA if he had enough innings to qualify. The Mariners have won his last four starts, in which he has only given up a total of four runs. 

Ranger Suarez (2-3, 3.21 ERA, 1.17 WHIP) has pitched well in his last two starts, surrendering a total of three runs after allowing a total of nine runs in the two starts before that. However, he will get little run support from a Boston lineup that ranks dead last in the Majors in runs scored. 

Take the Mariners in this opener, facing a Sox team that has two wins in their last 10 games. 

Milwaukee Brewers vs. Atlanta Braves: Under 8 runs 

A couple of division leaders square off in a series opener, with the NL East-leading Atlanta Braves (46-27) hosting the NL Central-leading Milwaukee Brewers (45-27).

bet365 Sportsbook has set the total for this game at 8 runs, and we are taking the Under because of the pitching matchup. 

Brewers’ Ace Jacob Misiorowski (8-2, 1.34 ERA, 0.74 WHIP) is the Cy Young frontrunner and leads the Majors in ERA, WHIP, and strikeouts. He has been dominant, to say the least: in his last eight starts, he has allowed a grand total of two runs. 

Martin Perez (5-3, 2.90 ERA, 1.05 WHIP) goes for the Braves and has not given up more than three runs in his last four starts. 

Besides the starters, the Braves' bullpen leads baseball in ERA, and the Brew Crew ranks ninth. 

Same Game Parlay: Pirates @ Rockies

Here are our DraftKings Sportsbook same game parlay picks for the first matchup of an interleague series between the Pittsburgh Pirates (38-37) and the Colorado Rockies (28-47).

Pirates vs. Rockies SGP

According to our Parlay Calculator, this SGP has odds of +536 and an implied probability of winning of 15.72%. A successful $100 bet would net $536 in profit for a total payout of $636.

Key factors to consider for the Pirates vs. Rockies same game parlay include:

• The Pirates have won their last two games, totaling 18 runs.
• The total has gone Over for the Bucs' last three games.
• The Rockies rank dead last in the Majors in team ERA and bullpen ERA. 
• Colorado starter Kyle Freeland (1-7, 7.98 ERA, 1.70 WHIP) has given up at least five earned runs in three of his last four starts.
• The total has gone Over in three of Freeland’s last four starts.
• The Rockies have the worst record in baseball.