Xander Bogaerts Is A Complicated Mess

Xander Bogaerts is having the worst offensive season of his career. At 33 years old, he is hitting .221/.316/.324 with an 85 wRC+ for the San Diego Padres. Those are the lowest outputs among his full seasons since he posted an 81 wRC+ and 0.1 fWAR in 2014, his first season as a starter with the Red Sox.

However, there is a question that sounds more interesting than why he's got such a low average: How can a hitter maintain one of the best disciplines in the league and, at the same time, become a much less productive version of himself? When exploring Bogaerts’ profile, it is clear that the reason for his inconsistency is not his plate discipline. His O-Swing% of 23.1% ranks in the 89th percentile of MLB. His BB% increased from 8.2% in 2025 to 11.9% this year, and his swing rate has barely changed, from 41.9% to 41.7%.

Bogaerts is still generating hard contact, but that contact is no longer producing the same value. His 39.8% Hard-Hit rate does not support the offensive decline, as that's his best mark since 2021 (43.0%). However, the expected averages bring us much closer to the root of the collapse. His .247 xBA and .374 xSLG this year are his worst marks since 2017, when he had also posted the lowest levels of his career up to that point.

Once we break down those expected averages, we get to where we wanted to be. And, to answer your biggest question, no fastballs have not been the culprits stopping Bogaerts’ swing. His hands are still skilled at attacking velocity on time and producing quality at-bats.

Against fastballs, he is averaging a .442 xSLG, the highest of his career since 2021. He has produced a .395 xwOBA, .518 xSLG and 46.3% Hard-Hit% against the four-seam. His Whiff% against fastballs is just 13.6%. The challenge he has not been able to solve appears when pitchers mix breaking pitches and off-speed pitches.

During his last four years with the Red Sox, when Bogaerts built a profile that made him one of the most complete shortstops in MLB, you could still see the gap between his ability to destroy fastballs and the breakdowns that appeared against the rest of the pitches. When he arrived in San Diego in 2023, that profile improved significantly, but since then Bogaerts has not been able to sustain it.

By comparing his performance across these three periods, we can see where the inconsistencies that have now reached a concerning point began to appear:

Xander Bogaerts vs. Breaking & Off-speed Pitches

As you already know, the period between 2019 and 2022 covers Bogaerts’ final four years in Boston. The next one covers his first four years in San Diego, and then we have 2026. The most concerning decline appears in everything related to offensive production, especially in xwOBA and xSLG, while BABIP has also fallen considerably.

But expected stats aren't enough. So I made sure to go a little deeper. I explored how Bogaerts’ swing impacted every part of the strike zone, and it is evident that his production was much more complete during his final four seasons in Boston.

xwOBA 2019-2022 vs. Breaking & Off-speed Pitches

xwOBA 2023-2026 vs. Breaking & Off-speed Pitches

In Boston, he had just one weak point inside the strike zone: a .241 xwOBA in the lower corner, curiously the same mark he has had during this stretch with the Padres. Most of the notable differences appear in what he stopped producing with his swing against pitches down in the zone.

And that is where the 2026 chart changes the story.

This year, Bogaerts has been able to produce above-average results in only one quadrant inside the strike zone and, surprisingly, it's when he reaches for pitches high outside of it.

If you have followed Bogaerts for some time, you know that he loves to swing at the first pitch. This year, his 24.2% rate is the highest of his career in that situation, and he has gotten some good dividends from it, with a .909 OPS, his best mark since 2021. And yet, that efficiency has also not been able to appear against the mix of breaking pitches and off-speed pitches, where he has produced just a .209 xBA and .228 xSLG.

Bogaerts still knows which pitch he wants to attack. The problem is that, increasingly, finding it no longer guarantees that he can do damage with it. As long as he's got flaws in his swing that are this exploitable, the Padres are going to have to find a way to navigate around a black hole in their lineup.