Last But Not Least, ZiPS

Dan Szymborski was kind enough to let us post the ZiPS projections he provides to Baseball Think Factory. Here’s a bit about ZiPS:

“Disclaimer: ZiPS projections are computer-based projections of performance. Performances have not been allocated to predicted playing time in the majors – many of the players listed above are unlikely to play in the majors at all in 2007. ZiPS is projecting equivalent production – a .240 ZiPS projection may end up being .280 in AAA or .300 in AA, for example. Whether or not a player will play is one of many non-statistical factors one has to take into account when predicting the future. “

Just like with the Bill James projections, we’ve used the Batting Average, On-Base Percentage, Slugging Percentage, Runs Created, Runs Created/27 and ERA supplied in the original file instead of calculating it ourselves.

I’m fairly certain this will be the last addition to the projections this season, which leaves us with a grand total of four projections (Bill James, CHONE, Marcels, and ZiPS) to choose from.

As always, if you notice any problems or errors, please let us know and we’ll do our best to fix the problem immediately.





David Appelman is the creator of FanGraphs.

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studes
17 years ago

Tremendous public service, David. Thanks again.

I think there may be a flaw in the way you’re presenting the walk stats for Marcel. Looking at Pujols, I see Marcel has him at 78 walks and 20 intentional walks, while the other systems don’t break out intentional and non-intentional walks.

However, your BB% looks wrong. I think you need to add together the BB and IBB totals for Marcel, instead of assuming the IBB’s are included in the BB’s. You should probably touch base with Tango about that.