Top MLB Betting Picks for September 19: Expert Predictions and Best Bets

Betting Expert Michael Rathburn shares his best bets from today's packed slate of MLB action, including a play on the Bryan Woo-Hunter Brown pitchers duel in the huge Mariners-Astros game
Top MLB Betting Picks for September 19: Expert Predictions and Best Bets
SPECIAL OFFER

Get 50% OFF All-in-One

Find the best pickups with our waiver wire tool, optimize your DFS lineups, and find your perfect pick. This subscription has everything you need to win this NFL season. Ends 9/21. Use promo code ALL.
PROMO CODE ALL

Top MLB Betting Picks for September 19: Expert Predictions and Best Bets

Previous article 1-2  ( -1.00 units)  

Season 135-143-2 (-12.14 units)

Cash in on the best sportsbook promos available at the best MLB betting sites this baseball season. The BetMGM bonus code gets new players one of the best welcome bonuses in the industry.

Key MLB Betting Trends and Matchups Analysis

Before locking in your MLB bets Friday, be sure to check out these key betting numbers.

As teams fall out of the playoff race, we will start to see inflated moneylines.

Road Favorites - Padres -170 at White Sox

Home Favorites -  Mets -200 vs Nationals, Dodgers -160 vs Giants

Totals - Angels/Rockies 11.5-12.0, Red Sox/Rays 7.0-7.5

Line Movement - Dodgers -34. Jays -21

Check out Caesars' MLB offerings this season using the Caesars Sportsbook promo code at signup for a generous welcome offer.

Boston Red Sox vs Tampa Bay Rays Best Bets and Predictions

With a little more than a week left in the 2025 MLB season, the playoff races are hot and heavy. The Red Sox are in the middle of it, but their offense has shut down since Roman Anthony ended up on the IL. 

Boston goes with their ace Garrett Crochet in this must win game. Crochet has been one of the best pitchers in baseball, but has been giving up lots of long balls lately. Drew Rasmussen has also been homer prone in recent starts. Both pitchers have been able to limit the opposition, with Crochet doing it with swing and miss stuff and Rasmussen limiting baserunners.

The Red Sox are 7-2-1 to the UNDER in their last 10 games. 

Best Bet: Red Sox/Rays UNDER 7.5 runs for 1 unit (ESPN Bet -135)

Check in on one of the top sports betting apps when you sign up with the bet365 bonus code for your baseball betting.

Seattle Mariners vs Houston Astros Best Bets and Predictions

I am going to come back with another UNDER play as this one features the Mariners and the Astros. This is a huge series as both teams are tied with a 84-69 record and the season series is tied at 5-5. 

Bryan Woo and Hunter Brown are two of my favorites pitchers and among the  best young arms in the American League. They also usually go at least 6 innings per start.  Woo has a 3.02 ERA over his last 7 starts and Brown is at a 1.66 ERA in his last 10).  

This game and series is just way too close to call on paper, so I will lean towards the total going UNDER. 

Best Bet:  Mariners/Astros UNDER 7.5 runs for 1 unit (DraftKings -118)

Sports betting is officially live in the state of Massachusetts. To get the most bang for your buck when selecting a sportsbook as a new customer, check out these Massachusetts Sports Betting Promos.

New York Yankees vs Baltimore Orioles Best Bets and Predictions

Trevor Rogers has been lights out all year and it is hard to imagine him being a home dog against the Yankees, but that's the line. The Orioles have won 4 out of his last 5 home starts in which he was a dog. 

Will Warren got roughed up in his last outing against the Red Sox for 6 earned runs and 10 hits in 5 innings. He also does not have good history against the Orioles in 2 starts this season going 9.2 innings with a 5.59 ERA and 1.66 WHIP. 

Anothe thing to consider is how bad the Yankees bullpen is with a 6.22 ERA so even if this is a tie ball game or close after 5 or 6 innings, the Orioles can get to them. 

Best Bet: Orioles ML for 1 unit (FanDuel +106)

Sports betting is officially live in the state of Massachusetts. To get the most bang for your buck when selecting a sportsbook as a new customer, check out these Massachusetts Sports Betting Promos.

Friday's MLB Best Bets

  • Red Sox/Rays UNDER 7.5 runs for 1 unit (ESPN Bet -135)
  • Mariners/Astros UNDER 7.5 runs for 1 unit (DraftKings -118)
  • Orioles ML for 1 unit (FanDuel +106)
ABOUT THE AUTHOR
Known as “Rath” in the Daily Fantasy Sports (DFS) community, he has helped run operations for two prominent daily fantasy sports startups. Michael has taken his insider knowledge and expertise in daily fantasy sports to the content side. Rath won the 2016 FSWA "Baseball Article of the Year, Online" award and was a finalist for the FSWA Best Baseball Series in 2011.
RotoWire Logo

Continue the Conversation

Join the RotoWire Discord group to hear from our experts and other MLB fans.

Top News

Tools

MLB Draft Kit Logo

MLB Draft Kit

Fantasy Tools

Don’t miss a beat. Check out our 2025 MLB Fantasy Baseball rankings.