Incredible Mariners home run stat defies logic (especially without Cal Raleigh)

It's supposed to be really, really hard to hit at T-Mobile Park. It's part of what made Cal Raleigh's 60-homer season last year so special, so wait'll you get a load of what the Mariners are doing at home mostly despite him this season.

Credit goes to Mike Petriello of MLB.com for noticing it first, but no team has hit more home runs in its home stadium than the Mariners' 50. And it's not a sample size thing, either. The Mariners are homering every 22.7 at-bats in Seattle, their lowest such rate dating back to T-Mobile Park's first full season in 2000.

The Raleigh element is equal parts hard to ignore and utterly fascinating. Of the 60 balls he sent over the fence in 2025, a club-record 28 were at T-Mobile Park. He was a shell of that guy even before he went on the injured list in May, hitting four of just seven homers in Seattle. This fact and the broader fact of the Mariners' homer onslaught at T-Mobile Park should not go together.

Could the situation at T-Mobile Park simply be different this year? It's possible. A variety of factors make it an extremely pitcher-friendly stadium by default, but back-to-back years of home run oddities definitely make one pause and look around for answers.

Could climate change be messing with the marine layer? Did the team make a change to the notoriously wonky batter's eye that is perceptible only to Mariners hitters? Did benevolent and telekinetic extraterrestrials buy season tickets?

The Mariners seem to have hacked how to hit at T-Mobile Park, and it's a game-changer

Then again, why settle for crediting some sort of invisible hand when Edgar Martinez, Kevin Seitzer and Bobby Magallanes are right there?

This trio of hitting gurus established its bona fides by fully unlocking Raleigh and Julio Rodríguez last year, and now Luke Raley in 2026. More broadly, Martinez, Seitzer and Magallanes do seem to have opened new frontiers for hitting at T-Mobile Park.

In 2024, the Mariners struck out in home games at a 28.4 percent clip. This year, it's just 23.8 percent. That alone is huge, and the quality of the swings is important as well. They are collectively taking an ideal attack angle to the ball 53.9 percent of the time, the highest such mark in a four-year sample. Pulled fly balls account for 9.9 percent of all their batted balls at home, the highest rate of any team in MLB.

It's possible that these are just early-season blips that will glitch out over time. But at least there are real root causes for the Mariners' T-Mobile revolution, and the competitive advantage is not to be dismissed. As is, their offense's .730 OPS at home dwarfs the .677 OPS the competition has managed at T-Mobile Park thus far.

Come October, this advantage will be less good to the Mariners if they fail to secure home-field advantage like they did last year. But if they do, their rewriting of the T-Mobile Park rules will be another reason to take them seriously as a World Series contender.

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