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Data Analysis: The Most Foul-mouthed MLB Fandoms

Tobias Fanta
Tobias Fanta Sports Betting Expert
1 minute read
Data Analysis: The Most Foul-mouthed MLB Fandoms

With the 2025 MLB season in full swing, VegasInsider has analyzed the subreddits of all 30 MLB fandoms to find out which fans are the most polite and on the contrary, which fandoms are the most foul-mouthed. 

At first, a sample of comments from the subreddits of the MLB fandoms was collected (with a minimum of 15,000 comments per fandom) and subsequently it was analyzed how much % of their comments included swear words.

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According to an analysis of 1.2 million comments of all the MLB fandoms, Oakland Athletics were found to be the most foul-mouthed fandom since 6.51% of the comments on their subreddit included swear words. Cleveland Guardians turned out to be the second most foul-mouthed MLB fandom (6.06% of their comments included swear words) followed by Miami Marlins in third place with 5.91% of their comments including swear words. 

On the other hand, Cincinnati Reds were found to be the most polite fandom since only 2.86% of their comments included swear words. The second and third most polite fandoms turned out to be Philadelphia Phillies and Chicago Cubs, respectively - only 3% of the comments of Philadelphia Phillies included swear words while only 3.2% of the comments of Chicago Cubs included swear words. 

You can see the results for all the MLB fandoms in the table below.

The most “popular” swear words per fandom can be found below. 

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METHODOLOGY

  • In total,1,206,364 comments from 30 subreddits of the 2025 MLB fandoms were analyzed, looking for comments that contained swear words 
  • In total, 50,034 swear words were found
  • Each fandom was assigned a percentage value based on the % of the comments on their subreddit that contained swear words 
  • Minimum number of comments collected per fandom: 15,000
  • The final analysis was carried out in April 2025

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Tobias Fanta

Tobias Fanta

Tobias is a Digital PR Manager and he creates research focused on sports and entertainment; his research has appeared in Sports Illustrated, Forbes, The New York Times, Time Magazine & more. More from Tobias Fanta
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