Mariners vs Red Sox Betting Guide and Expert Picks September 1st, 2026

Seattle Mariners

@

Boston Red Sox

Seattle Mariners Insights

• Bryan Woo – Over/Under 17.5 Pitching Outs (-110/-120)
  Bryan Woo has tallied 17.1 outs per outing this year, grading out in the 80th percentile.
  Explain: A pitcher who averages more outs per start than his Outs prop may be a good bet to go over, and visa-versa for the under.
• Cal Raleigh – Over/Under Total Bases
  Cal Raleigh has been hot recently, raising his seasonal exit velocity of 89.6-mph to 104.3-mph over the last 7 days.
  Explain: Hitting the ball hard increases the chances of either a home run or the ball landing in fair territory for a hit before a fielder can get to it.
• The Seattle Mariners jointly rank 21st- overall in the league this year when it comes to the maximum exit velocity of all of the balls their [HITTER}s have hit.
  Explain: If a player can hit the ball hard even once, it has great predictive power over his ability to do it again. If he’s never hit the ball hard, it’s a sign of a lack of power.

Boston Red Sox Insights

• Sonny Gray – Over/Under Strikeouts
  Sonny Gray has utilized his cut-fastball 6.8% more often this season (19.4%) than he did last year (12.6%).
  Explain: Because cutters are one of the most effective pitches to use, a pitcher who alters his pitch mix to use more of them will often see more success as a result.
• Roman Anthony – Over/Under 1.5 Total Bases (+125/-160)
  Roman Anthony has had bad variance on his side thus far when it comes to his home runs since the start of last season; his 12.5 HR per 600 plate appearances figure is deflated compared to his 27.7 Expected HR/600, based on the leading projection system (THE BAT X)’s interpretation of Statcast data.
  Explain: xHR uses highly advanced Statcast data to measure a player’s home run ability more accurately than actual home runs can.
• Jarren Duran – Over/Under Total Bases
  Jarren Duran has a 92nd percentile opposite-field rate on his flyballs (36%) and is a great match for the park considering he’ll be hitting them towards baseball’s shallowest LF fences today.
  Explain: This player’s skill set matches up particularly well with the park he’s in today, which may lead to better-than-usual performance.