The Lefty Ketel Marte Is Performing Better Than Ever

I’ve long been a staunch supporter of Ketel Marte. Switch-hitters with short levers are my personal favorite archetype. When you can produce 90th-percentile max exit velocity from both sides of the plate with only mid-teens strikeout rates, you’ll have my attention each and every night. It’s not always the case that switch-hitters have two contrasting swings, but it is for Marte. He is a natural right-handed hitter, which has played out clearly in his performance over the years, but every now and then, everything clicks on both sides of the plate. In fact, since his breakout 2019 season, he has been an above-average hitter from the left side every other year. But this season, he has taken off unlike ever before.
Throughout Marte’s career, there has been a stark difference in his power from the right side versus his left side. Despite being powerful in terms of exit velocity from both sides, he has always been better at creating pull side lift with his natural right-handed swing. That has resulted in a career ISO of .215 as a righty and .155 as a lefty. But like I said, things are clicking for him as a righty this year.
Before diving into the deep details, let’s look at his splits each year since the 2019 breakout:
Year | Handedness | wRC+ | xwOBA | ISO |
---|---|---|---|---|
2019 | Right | 151 | .378 | .292 |
2019 | Left | 150 | .374 | .252 |
2020 | Right | 193 | .317 | .231 |
2020 | Left | 57 | .302 | .078 |
2021 | Right | 203 | .430 | .349 |
2021 | Left | 112 | .347 | .154 |
2022 | Right | 125 | .329 | .193 |
2022 | Left | 95 | .310 | .157 |
2023 | Right | 147 | .380 | .202 |
2023 | Left | 138 | .355 | .239 |
There is still fluctuation, but in general, Marte is consistently well above average from the right-handed side. Last year was his worst mark since his breakout, and he was still a 125 wRC+ hitter. But with the more advantageous side of the platoon being the left side, his overall production is highly dependent on how he performs when facing right-handed pitching. So for the rest of this piece, I want to shift my focus to that side. This is the best Marte has been as a lefty since 2019, and that warrants an investigation on what exactly he has done to get here. Read the rest of this entry »