Park Factors

Fenway Park, Boston

Park Factor


111 R
90 HR

This means that in the years 2010-2016, Fenway Park produced 111 runs for every 100 runs produced in the average MLB park, and 90 HRs for every 100 homers, for a mean Park Factor of 101.

This park plays close to neutral.

Fenway Park, Boston

The oldest ballpark in baseball, Boston's beloved Fenway Park (1912-present) has undergone many renovations in the last twenty years, though none as obvious as the 2003 addition of seating to the top of the once-precariously thin Green Monster in left field. That Monster compensates (somewhat) for the shortest corners in baseball (310 in the Monster's left field corner, 302 to Pesky's Pole in right). The park is deep to the alleys (379-380) but this isn't enough to make up for the Monster's propensity to turn fly balls into singles. The park is also so cozy that foul territory is very scarce, further inflating batting averages. Fenway has been the best AL park for hitters for a century now, and that situation doesn't seem likely to change anytime soon.

Team Park City Data PF
1 COL Coors Field Denver, Colorado 2010-2016 138
2 MLW Miller Park Milwaukee, Wisconsin 2010-2016 118
3 CIN Great American Ball Park Cincinnati, Ohio 2010-2016 117
4 NYY Yankee Stadium New York, NY 2010-2016 117
5 BAL Camden Yards Baltimore, Maryland 2010-2016 115
6 CHW U.S. Cellular Field Chicago, Illinois 2010-2016 115
7 TEX Globe Life Park Arlington, Texas 2010-2016 114
8 TOR Rogers Centre Toronto, Ontario 2010-2016 112
9 PHI Citizens Bank Park Philadelphia, Pennsylvania 2010-2016 109
10 ARZ Chase Field Phoenix, Arizona 2010-2016 108
11 CHC Wrigley Field Chicago, Illinois 2010-2016 105
12 HOU Minute Maid Park Houston, Texas 2010-2016 105
13 BOS Fenway Park Boston, Massachusetts 2010-2016 101
14 CLE Progressive Field Cleveland, Ohio 2010-2016 100
15 DET Comerica Park Detroit, Michigan 2010-2016 99
16 WAS Nationals Park Washington, D.C. 2010-2016 98
17 LAD Dodger Stadium Los Angeles, California 2010-2016 97
18 MIN Target Field Minneapolis, Minnesota 2010-2016 96
19 ATL Turner Field Atlanta, Georgia 2010-2016 95
20 KC Kauffman Stadium Kansas City, Missouri 2010-2016 94
21 NYM Citi Field New York, NY 2010-2016 90
22 STL Busch Stadium St. Louis, Missouri 2010-2016 90
23 TB Tropicana Field St. Petersburg, Florida 2010-2016 89
24 OAK O.Co Coliseum Oakland, California 2010-2016 87
25 LAA The Big A Anaheim, California 2010-2016 86
26 MIA Marlins Park Miami, Florida 2012-2016 86
27 PIT PNC Park Pittsburgh, Pennsylvania 2010-2016 86
28 SD Petco Park San Diego, California 2010-2016 86
29 SEA Safeco Field Seattle, Washington 2010-2016 85
30 SF AT&T Park San Francisco, California 2010-2016 76 is brought to you by, using weather information provided by the national weather office. Wind direction is averaged to the nearest cardinal point and adjusted to ballpark orientation. Wind descriptions are provided using the Beaufort Standard Scale of wind terminology, ranging from 'still air' to 'hurricane' force. Park Factor is calculated differently by different analysts. Our Park Factor summary formula uses the mean of runs scored and home runs hit per game at home vs away, where 100 would be a perfectly-average park. Elements and terms on this site such as Major League, Major League Baseball, MLB, the silhouetted batter logo, World Series, National League, American League, Division Series, League Championship Series, All-Star Game, and the names, nicknames, and logos used on this site are the property of Major League Baseball Properties, Inc. or of the individual constituent legal bodies therein. These elements and terms are used here nominatively, as indicia only, under terms of fair or descriptive use, as applicable. This website is not affiliated in any way with Major League Baseball, and no use of the terms or indicia of Major League Baseball shall be construed as indicating any such affiliation.