Ian Happ Flipped the Script

Last January, inspired by Cedric Mullins’s 2021 decision to stop switch-hitting, I tried to identify other switch-hitters who might benefit from swinging from one side or the other. Going beyond simply calculating the largest platoon splits, I relied on handedness splits for some of the players’ key underlying batted ball and plate discipline metrics. The idea was that there could be a path to improvement if these switch-hitters eliminated their severe underperformance from one side of the plate. Of course, the other option is simply to work on their weaker swing and become a better overall switch-hitter.
One of the batters I identified as a candidate to hit left-handed full-time was Ian Happ. Through 2021, Happ had posted a 55 point platoon split, the second-highest among the 25 switch-hitters in the sample. Happ crushes right-handed pitching from the left side, but all of his batted ball peripherals are significantly weaker when swinging from the right. Instead of taking my advice (thank goodness), Happ posted the best season of his career against left-handed pitching in 2022:
Year | wOBA vs R | wOBA vs L | Split |
---|---|---|---|
2017 | .357 | .326 | .031 |
2018 | .348 | .274 | .074 |
2019 | .381 | .321 | .060 |
2020 | .385 | .322 | .063 |
2021 | .340 | .289 | .051 |
2022 | .338 | .345 | -.007 |
Career | .351 | .311 | .040 |