Player Prop Odds Breakdown for Mariners vs Marlins – July 07, 2026

Seattle Mariners

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Miami Marlins

Seattle Mariners Insights

• George Kirby – Over/Under Strikeouts
  Because groundball pitchers hold a sizeable advantage over groundball hitters, George Kirby and his 46% underlying GB% (per the leading projection system, THE BAT) finds himself in a favorable spot in this game being matched up with 2 opposing GB hitters.
  Explain: This mostly has to do with the way the hitter’s swing plane interacts with the pitch trajectory, and it can create boosted performance across all categories and hidden value few are considering.
• Cal Raleigh – Over/Under 0.5 Hits (-145/+110)
  The leading projection system (THE BAT X) estimates Cal Raleigh’s true offensive skill to be a .350, providing some evidence that he has been unlucky this year given the .092 disparity between that mark and his actual .258 wOBA.
  Explain: Players that are underperforming should be expected to play worse going forward, which can create value on prop Overs if the lines are too heavily weighing the unlucky, to-date underperformance.
• George Kirby – Over/Under Strikeouts
  Cal Raleigh, the Mariners’s expected catcher today, profiles as an elite pitch framer according to the leading projection system (THE BAT).
  Explain: Pitch framing is a catcher’s ability to make a ball look like a strike to the umpire, “stealing” strikes for his pitcher. This leads to more positive outcomes (like strikeouts) and fewer negative ones (like walks or earned runs).

Miami Marlins Insights

• Max Meyer – Over/Under 6.5 Strikeouts (+120/-155)
  Max Meyer’s slider utilization has spiked by 9% from last year to this one (46.8% to 55.8%) .
  Explain: Because sliders 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.
• Jakob Marsee – Over/Under Hits
  Jakob Marsee is projected to hit 7th in the batting order today, which would be a downgrade from his 61% rate of hitting in the top-half of the lineup this year.
  Explain: The lower in the order a player bats, the fewer plate appearances he will get and the fewer opportunities he will get to hit the Over for every market. A player who hits lower in the order than he normally does may provide extra value opportunity since the market may be based on him hitting higher.
• The 6.6% Barrel% of the Miami Marlins grades them out as the #27 group of hitters in MLB this year by this standard.
  Explain: Barrel% measures how often a player hits the ball at the optimal exit velocity and launch angle and is a terrific measure of underlying power.

Betting Trends

• Miami Marlins – Moneyline (-115)
  The Miami Marlins have hit the Moneyline in 17 of their last 23 games at home (+10.55 Units / 38% ROI)
• Seattle Mariners – Over/Under Team Total
  The Seattle Mariners have hit the Team Total Under in 11 of their last 16 away games (+5.15 Units / 27% ROI)