Luke Raley's Mariners slugging resurgence is the ultimate Rorschach test

As the Mariners stumble through (yet) another slow start to a season, one of the more positive things is how effective Luke Raley has been at the plate. Through 20 games he leads the team with a .328 batting average, .623 slugging percentage, 1.002 OPS and 190 OPS+. But just how realistic is it to expect this kind of success to continue?

The signs were there during spring training that Raley could have a bounce-back year after an injury-impacted 2025, producing a .283/.400/.543 slash line and .943 OPS in 55 plate appearances. Further, his first season Mariners season in 2024 had been a success, as he set several career-highs including 22 home runs, 58 RBI, 128 OPS+ and 3.2 bWAR.

Likely influenced at least in part by his injury issues last season, Raley also changed his approach to taking care of his body. As per Brent Stecker of Seattle Sports, the 31-year-old cut down on how much he uses weights, instead focusing more on his flexibility through stretching and yoga.

Luke Raley is crushing the ball hard enough to cover up red flags

As for how realistic it is to expect Raley to continue being as successful, it depends on your perspective and what you focus on. For example, as unsustainable as his elite .623 slugging percentage might seem (and also noting his career .436 slugging percentage), he's actually underperforming his expected slugging percentage of .662.

Certainly this power has been on display, with Raley having already hit four home runs to equal his total for all of last year. (He also already has 12 RBI, just seven short of what he manage in 2025.) And nowhere was the power unleashed more than with the ball he crushed on Wednesday night in San Diego:

Where things get interesting is that based on his .442 expected wOBA, Raley is actually the ninth-best hitter in the majors right now. However, this is going to be hard to keep up when you consider his 50.4 Whiff% is in the first percentile ranking, while he has also only managed three walks in 66 plate appearances.

Still, all that matters as of right now is that Raley is raking, and this is more than what you'd take from a back-of-the-order threat. Although another key to his success could be how much Mariners manager Dan Wilson continues to limit using him against lefties, with this being highlighted during Thursday's series finale versus the Padres.

Mariners should show more faith in Luke Raley despite platoon matchup strategy

The Mariners had battled back from a four-run deficit to pull to within 4-2 in the top of the sixth, when Raley came to the plate with just one out and the bases loaded. The Padres decided to then bring in southpaw Adrian Morejon, so Wilson responded by lifting Raley for Connor Joe.

Raley has a career .799 OPS versus righties but only a .533 OPS against lefties, so in theory it made sense to bring Joe in, who has a career .741 OPS when facing left-handed pitchers. However, when Joe subsequently struck out the critics were up in arms, pointing out he hadn't played in a week and mentioning how Raley managed a hit off a lefty a night earlier.

For us, we do appreciate Wilson was playing the odds combined with the fact the Mariners had a lack of relevant quality options, with Rob Refsnyder on the paternity list and Victor Robles injured. However, with Raley coming off a career four-hit game and arguably being the team's hottest hitter right now, taking him out with the bases loaded really did show just how strictly he's being platooned.

Throw in the reality that Joe actually struggled last year versus lefties, and we can at least understand why Bob Stelton said that the Mariners should have stuck with the hot guy. It will be interesting to see how strict the Mariners continue to be with their platoon system moving forward, but for now it seems that Wilson and Stelton are seeing different things when taking their Raley-specific Rorschach test.

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