The Braves sure do love “hey, this guy might have reverse splits, let’s do something about it!” Or, maybe they don’t really love it, but this is at least twice in recent memory that they’ve taken someone who might have… neutral splits, and gone with more righty bats. It doesn’t make much sense to me, but there it is. Lane Thomas and Brewer Hicklen are in the lineup this afternoon, as well as Ha-Seong Kim, while Sean Murphy, Ozzie Albies, and Mike Yastrzemski ride the bench.
Let’s take a wide view of Nick Martinez and his stats.
For the 2026 season, Martinez has a .283 wOBA-against by lefties, and a .310 wOBA-against by righties. This persists when you look at inputs by those batters, with a 3.78 xERA from lefty batters and a 4.89 xERA by righty batters.
However, the actual pitching is way less clear cut: Martinez has a 3.96 FIP and 4.50 xFIP against lefties, and a 3.94 FIP and 4.45 xFIP against righties. He seems more platoon-neutral than anything else. Considering that Lane Thomas is himself worse against righties, I’m not a huge fan of this, but whatever.
If you take the arc of Martinez’ career, “platoon-neutral” also seems tempting as a conclusion. His wOBA-against is within .001 against lefties and righties, his xERA is marginally lower against lefties (4.19 to 4.39), and his FIP and xFIP have a marginal split in the expected direction (4.53 / 4.66 against lefties, 4.45 / 4.49 against righties). So, I wouldn’t do this, but the Braves are.
Meanwhile, the Rays are giving Martin Perez a few more righties to contend with, including Ryan Vilade and Nick Madrigal, though Chandler Simpson and Cedric Mullins remain in the lineup despite batting left-handed.
Let’s talk about batter-versus-pitcher, too, just for the sake of having something else to add here, even though it doesn’t really matter. Martin Perez has been around a while, but most of these Rays batters have not. Both Nick Martinez and most guys in the Braves’ lineup are veteran-ish.
Everyone but Hicklen and Drake Baldwin on the Braves side has faced Nick Martinez at least twice; Matt Olson leads the pack with 19 PAs and a pretty hefty .508 wOBA / .384 xwOBA. Austin Riley, Ronald Acuña Jr., and Mauricio Dubon have also done the business against Martinez in limited PAs. The collective line is a .351 wOBA and .336 xwOBA in 53 PAs.
For the Rays and Perez, it’s similar-ish: six of nine in their lineup have faced him. Yandy Diaz (.468 wOBA, .358 xwOBA) has 32 career PAs against Perez; Mullins has struggled with a .210-.220ish wOBA/xwOBA in 14 PAs. Collectively, it’s 64 PAs with a .364 wOBA / .316 xwOBA, so basically there’s a similar level of familiarity and performance in that sample by both of these teams against the scheduled starter.
