A few days ago, while researching home runs hit by the Cubs at Great American Ballpark in Cincinnati, I noticed that visiting teams have hit more homers there than the Reds have since GABP opened in 2004.

Through Wednesday, visitors had hit 151 more, 2,079 to 1,928.

I wanted to know if there were other teams that had been outhomered at home, so I determined the number of homers hit by the host and visiting teams at each of the 29 other current parks. (Data was not available for 1912-14, the first 3 seasons of Fenway Park in Boston.)

I was startled by what I found:

16 teams -- more than half! -- have surrendered more homers than they have hit on their home turf.

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ROYALS FLUSHED

The differences among those 16 park ranged from just 27 homers at Globe Life Field, in Arlington, Texas home to the Rangers for less than 2 years, to 647 at Kauffman Stadium in Kansas City, which opened in 1973.

The 647 difference is nearly double the second largest, 352, at Angels Stadium in Anaheim, Calif., open since 1966.

Here are all 16, from largest difference to smallest, through Tuesday's games:

-647: Kauffman Stadium, Kansas City

-352: Angels Stadium, Anaheim

-295: American Family Field, Milwaukee

-203: T-Mobile Park, Seattle

-159: Chase Field, Phoenix

-150: Great American Ballpark, Cincinnati

-147: Tropicana Field, St. Petersburg, Fla.

-120: PNC Park, Pittsburgh

-106: Petco Park, San Diego

-105: Citizens Bank Park, Philadelphia

-67: LoanDepot Park, Miami

-64: Comerica Park, Detroit

-59: Citi Field, New York

-52: Target Field, Minneapolis

-43: Oriole Park, Baltimore

-27: Globe Life Field, Arlington, Texas

Together, the home teams at those parks have allowed 2,596 more homers than they have hit, an average of 162 per team. The median number is only 113.

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PERCENTAGES BELOW 50

Here are those parks again, ranked by percentage of home runs by the home team, from lowest to highest:

44.8: Kauffman Stadium

45.7: Globe Life Field

47.2: T-Mobile Park

47.3: LoanDepot Park

47.9: Angels Stadium, Petco Park and PNC Park

48.1: Chase Field, Great American Ballpark and Tropicana Field

48.5: Cit Field and Citizens Bank Park

48.7: Target Field

48.8: American Family Field

49.1: Comerica Park

49.6: Oriole Park

Their combined percentage is 48.1.

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RED SOX REIGN

At the 14 other current parks, home teams have hit 2,935 more homers than they have allowed, an average of 210 per team.

The number by park ranged from 607 more at Fenway Park to 17 more at Nationals Park. The median was 180.

Wrigley Field ranks seventh in difference, at 215. The Cubs have hit 7,067 homers there and given up 6,852.

Here are all 14 parks, from largest difference to smallest:

607: Fenway Park, Boston

433: Oakland Coliseum, Oakland

399: Dodger Stadium, Los Angeles

274: Rogers Centre, Toronto

242: Yankee Stadium III, New York

226: Progressive Field, Cleveland

215: Wrigley Field, Chicago

145: Guaranteed Rate Field, Chicago

95: Coors Field, Denver

79: Truist Park, Atlanta

70: Busch Stadium III, St. Louis

68: Minute Maid Park, Houston

65: Oracle Park, San Francisco

17: Nationals Park, Washington

The number and ranking of Oakland Coliseum surprised me.

So did the relatively small difference at Coors Field, where I would have thought the Rockies had hit significantly more homers than their guests.

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PERCENTAGES ABOVE 50

Here are those 14 parks, ranked by percentage of homers by home team, from highest to lowest:

54.5: Truist Park

54.3: Yankee Stadium III

52.8: Oakland Coliseum

52.5: Dodger Stadium

52.4: Progressive Field

52.3: Fenway Park and Rogers Centre

51.5: Busch Stadium III

51.2: Guaranteed Rate Field and Oracle Park

50.8: Coors Field, Minute Maid Park and Wrigley Field

50.4: Nationals Park

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TINY OVERALL DIFFERENCE

In all, from Opening Day of 1915 through Tuesday, batters had hit 146,917 home runs at the 30 current parks:

73,628 by the home team

73,289 by the visitors

That is a different of just 339 homers, or 0.23 percentage points -- 50.11 percent by home teams and 49.88 percent by visitors.