MLB · Ballpark Factors
What Are Ballpark Factors in MLB DFS?
Last updated September 22, 2026 by Ship It Nation
Ballpark factors, also called park factors, measure how much a stadium raises or lowers scoring compared with an average park. Altitude, fence distances, foul territory and typical weather shape them, and some parks favor one side of the plate.
Why It Matters
The same hitters can project very differently from one day to the next just by changing parks, and salaries do not always keep up. A pitcher-friendly park can make an expensive arm safer, while a hitter-friendly park can lift a mid-priced stack. Because everyone knows Coors Field, the better edges often come from less famous park shifts.
Example
Say a mid-priced lineup spent the week in a big, pitcher-friendly park and now opens a series in a small park where fly balls carry. Its hitters' season stats look ordinary and their salaries barely moved, but the park alone lifts their home run chances. Stacking them before prices catch up gets you that boost at a discount, often at lower ownership than the Coors Field stack everyone else is on.
Check whether a park factor is split by handedness. Some parks boost left-handed power while doing little for righties, and that split can change which hitters you stack.
Heard on the Shows
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Common Questions
Which MLB ballpark is the best for hitters in DFS?
Coors Field in Denver is the most famous hitter's park. The thin air at altitude helps the ball carry, and the huge outfield leaves room for hits to fall. Hitters there get big projection boosts, which also makes Coors stacks some of the most popular and expensive plays on a slate.
Do park factors change from year to year?
Yes. Most sources use several seasons of data, but factors shift when a team moves its fences or opens a new stadium, and random variation moves single-season numbers. Lean on multi-year park factors rather than one season's results when you adjust projections.
Does a roof or dome change ballpark factors?
Yes. A closed roof takes wind and weather out of the picture, so the park plays about the same way every day. That makes those games steadier to project and removes rainout risk, though the park's dimensions still decide whether it favors hitters or pitchers.