The 2026 ZiPS Projections Are Almost Here!

As soon as one story in baseball ends, another begins. And so, with the 2025 season dissipating into silence as the champions hoist the World Series trophy, its remnants seed the next phase of the sport’s existence out from the quantum foam. The four months between now and Opening Day feel like an interminable gap, but we have the Hot Stove League to keep the MLB baseballmatic universe rolling. That means, as has been the case for nearly a quarter of a century now, it’s time for me to start rolling out the ZiPS projections for next season.
For those new to my projections, ZiPS is a computer projection system I initially developed in 2002–04. It officially went live for the public in 2005, after it had reached a level of non-craptitude I was content with. The origins of ZiPS are similar to Tom Tango’s Marcel the Monkey, coming out of discussions I had in the late 1990s with Chris Dial, one of my best friends (our first interaction involved Chris calling me an expletive!) and a fellow stat nerd. ZiPS quickly evolved from its original iteration as a reasonably simple projection system, and it now both does a lot more and uses a lot more data than I ever envisioned it would 20 years ago. At its core, however, it’s still doing two primary tasks: estimating what the baseline expectation for a player is at the moment I hit the button, and then estimating where that player may be going using large cohorts of relatively similar players.
So why is ZiPS named ZiPS? At the time, Voros McCracken’s theories on the interaction of pitching, defense, and balls in play were fairly new, and since I wanted to integrate some of his findings, I decided (with his blessing) that the name of my system would rhyme with DIPS (defense-independent pitching statistics). I didn’t like SIPS, so I went with the next letter in my last name. I originally named my work ZiPs as a nod to CHiPs, one of my favorite shows to watch as a kid, but I mis-typed ZiPs as ZiPS when I released the projections publicly, and since my now-colleague Jay Jaffe had already reported on ZiPS for his Futility Infielder blog, I chose to just go with it. I never expected that all of this would be useful to anyone but me; if I had, I would surely have named it in less bizarre fashion. Read the rest of this entry »







