See the Starting Lineup for Blue Jays vs Mariners – October 17, 2025

Toronto Blue Jays

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Seattle Mariners

Toronto Blue Jays Insights

• Kevin Gausman – Over/Under 5.5 Strikeouts (-130/+100)
  Kevin Gausman has a reverse platoon split and is fortunate enough to be facing 6 opposite-handed bats in today’s game.
  Explain: A pitcher with a reverse platoon split will perform better against opposite-handed hitters (i.e. a right-handed pitcher will be better against a left-handed hitter). Holding this advantage against several hitters can have a huge impact on whether a pitcher will perform well or struggle on any given day.
• George Springer – Over/Under 1.5 Total Bases (+110/-140)
  George Springer has seen a big increase in his exit velocity on flyballs this year; just compare his 96.4-mph average to last season’s 93.2-mph mark.
  Explain: Most home runs are flyballs, and the harder those flyballs are hit, the more often they turn into home runs. This is a strong indicator of power.
• Via the leading projection system (THE BAT X), the team with the least strikeout-heavy lineup today is the Toronto Blue Jays with a 17.4% underlying K%.
  Explain: THE BAT X analyzes each player in today’s specific lineup to figure out which teams have the least inherent strikeout potential for the opposing pitcher.

Seattle Mariners Insights

• Bryce Miller – Over/Under 2.5 Strikeouts (-105/-125)
  Out of all SPs, Bryce Miller’s fastball spin rate of 2509 rpm is in the 93rd percentile this year.
  Explain: Spin rate is a key component to fastball success in generating strikeouts and preventing runs.
• Eugenio Suarez – Over/Under 0.5 Total Bases (-125/-105)
  Eugenio Suarez is an extreme flyball hitter and faces the strong outfield defense of Toronto (#2-best on the slate today).
  Explain: This player’s skill set matches up poorly with the opposing team’s defensive strength, which may lead to worse-than-usual performance.
• Seattle Mariners – 2H Moneyline
  According to the leading projection system (THE BAT), the Seattle Mariners’ bullpen grades out as the 3rd-best among all teams in Major League Baseball.
  Explain: Most bettors only consider the starting pitcher, but a strong bullpen sneakily creates a tougher matchup for the opposing offense and suppresses a game’s runs.

Betting Trends

• Seattle Mariners – Moneyline (-110)
  The Seattle Mariners have hit the Moneyline in 36 of their last 52 games at home (+14.75 Units / 17% ROI)
• Toronto Blue Jays – Moneyline (-110)
  The Toronto Blue Jays have hit the Moneyline in 77 of their last 124 games (+22.40 Units / 14% ROI)
• George Springer – Over/Under 1.5 Total Bases (+110/-140)
  George Springer has hit the Total Bases Over in 13 of his last 20 games (+7.00 Units / 33% ROI)