Discover the Mariners vs Athletics Game Time – September 12, 2026

Seattle Mariners

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Athletics

Seattle Mariners Insights

• Bryan Woo – Over/Under 5.5 Strikeouts (+110/-140)
  Bryan Woo’s higher utilization percentage of his secondary pitches this season (33.9% vs. 27.2% last year) figures to work in his favor considering they are typically much more effective than fastballs.
  Explain: A pitcher who limits has fastball usage will instead heavily use change-ups, curveballs, sliders, etc. These are far more effective pitches at preventing runs and generating strikeouts.
• J.P. Crawford – Over/Under 1.5 Total Bases (+130/-170)
  J.P. Crawford is likely to have the upper hand against every reliever from start to finish, since the bullpen of the Athletics has just 1 same-handed RP.
  Explain: Hitters perform worse against pitchers of the same handedness (i.e. righty-vs-righty), and being able to avoid those matchups against the bullpen boosts performance and creates hidden edge.
• Today’s version of the Mariners projected offense is missing some of their usual firepower, as their .320 the leading projection system (THE BAT X) wOBA is considerably below their .331 overall projected rate.
  Explain: Betting lines are often based on seasonal team quality. If today’s lineup is watered down, however, there may be value if markets aren’t accounting for the lower quality of this offense.

Athletics Insights

• Athletics – Moneyline (+130)
  Among every team on the slate today, the worst outfield defense is that of the Athletics.
  Explain: Defense is an integral part of preventing (or, in this case, allowing) hits and runs.
• Donovan Walton – Over/Under 0.5 Total Bases (-175/+135)
  The leading projection system (THE BAT X) estimates Donovan Walton’s true offensive talent to be a .295, implying that he has been very fortunate this year given the .077 difference between that figure and his actual .372 wOBA.
  Explain: Players that are overperforming should be expected to play worse going forward, which can create value on prop Unders if the lines are too heavily weighing the lucky, to-date overperformance.
• Athletics – 2H Moneyline
  The Athletics bullpen ranks as the 2nd-worst in the majors, according to the leading projection system (THE BAT).
  Explain: Most bettors only consider the starting pitcher, but a weak bullpen sneakily creates an easier matchup for the opposing offense and boosts a game’s runs.

Betting Trends

• Over/Under 9.5 Game Total (-110/-110)
  The Athletics have hit the Game Total Over in 25 of their last 45 games (+5.60 Units / 11% ROI)
• Over/Under 9.5 Game Total (-110/-110)
  The Seattle Mariners have hit the Game Total Over in 8 of their last 11 games (+5.80 Units / 47% ROI)
• Lawrence Butler – Over/Under 0.5 Walks (+190/-250)
  Lawrence Butler has hit the Walks Under in his last 8 games (+8.00 Units / 49% ROI)