5:37 PM ET

Ballparks, they are a-shrinking.

For the fourth time in the past five seasons, at least one ballpark has moved in its fences. Following Citi Field in 2012, Petco Park and Safeco Field in 2014, then Citi Field again in 2015, Marlins Park will feature a smaller playing field when it reopens its doors in 2016. The Miami Marlins‘ stadium endured a significant renovation to its outfield fences during the winter, the details of which had not been fully confirmed as of our publishing date of Feb. 8. All information that had been shared by the team is detailed in the write-ups below.

When evaluating players for fantasy baseball, their home ballparks often have a noticeable influence on their statistics. Ascertaining these advantages can often prove complicated: Certain ballparks favor hitters, others pitchers; some favor right-handed hitters, some left-handed and some favor both equally; and others still favor contact ability, power, speed or gap hitting.

The aforementioned changes, too, affect the statistics. In the case of Citi Field, the smaller dimensions resulted in a boost for left-handed power. In the case of Marlins Park, smaller fences throughout the ballpark should take it from one of the worst venues in baseball for home runs to merely a below-average one, while diminishing its advantage for extra-base hits. The specifics of these ballparks’ changed dimensions, and the result — or projected impact — upon them are detailed in the rankings below.

One could simply head to our Park Factor page for a basic read on park factors. But be aware of their limitation: They’re one-year samples and are therefore more likely influenced by personnel who called them “home” in that given season. I prefer to take a longer-range approach — in this column’s case, a five-year sample from 2011-15 — to help neutralize the annual fluctuations in statistics at each venue.

Ranked below are all 30 Major League Baseball stadiums, from the most to least hitter-friendly, including any specific player advantages gained. Those seeking the most pitching-friendly venues should read the list beginning at No. 30. Park factors for runs and home runs (overall, for right- and left-handed batters) include the most recent five seasons’ worth of data unless otherwise noted, and are on the first line under the ballpark’s name; each ballpark’s reported dimensions moving from left to right field, with fence heights listed in parentheses, follow on the second line; and the ballpark’s altitude, roof type and playing field are on the third line.

For a handy reference, here are quick links to each of the 30 ballparks: