Baseball is full of tradition, passion, and, let’s be honest—some truly legendary levels of pettiness. Whether it’s booing a player for leaving in free agency or still bringing up an umpire’s blown call from 15 years ago, MLB fans know how to hold a grudge.
Some fanbases treat baseball like a sacred bond, and when that bond is broken—or even slightly bruised—they turn into full-on drama machines. Here are the 10 MLB fanbases that have made pettiness part of their baseball identity.
10. Detroit Tigers
Tigers fans still miss the 2006 vibes and aren’t shy about reminding you that Justin Verlander used to be theirs. They’ll also never forgive any team that dared to steal a promising prospect—or an ace they developed.
9. Atlanta Braves
Braves fans love their team, but they’ve got a long memory when it comes to playoff exits. They’ll bring up the ’90s dominance or last year’s MVP snub just to prove a point in any argument.
8. Chicago Cubs
Cubs fans waited over a century for a title and now act like they’ve been elite the whole time. They’ll still talk about Steve Bartman like it happened yesterday and don’t want to hear a word about that post-2016 decline.
7. Philadelphia Phillies
Phillies fans are always ready to boo, especially if you ever said something negative about Chase Utley. They’ll ride for their guys, hold grudges like trophies, and remind you how gritty their city is—over and over again.
6. Boston Red Sox
Red Sox fans never got over the “Yankees suck” chants, even when Boston was winning. They’ll tell you the 2004 comeback was the greatest moment in sports and glare at anyone who disagrees.
5. New York Yankees
Yankees fans live on a diet of rings and receipts. Bring up payroll or mention 2004, and you’ll unlock a petty storm of historical references and championship math.
4. Houston Astros
Astros fans have gone full defiance mode since the sign-stealing scandal. Every time you bring it up, they’ll point to the 2022 title and act like it never happened.
3. St. Louis Cardinals
Cardinals fans think they invented classy baseball and get extremely passive-aggressive when you disagree. They’ll defend “The Cardinal Way” with the kind of energy usually reserved for family heirlooms.
Read More: Ranking the 15 Most Toxic MLB Fanbases
2. Los Angeles Dodgers
Dodgers fans have a love-hate relationship with the league and will bring up their recent title just to poke at the haters. They’ve got beef with every team that dared to celebrate a win at Dodger Stadium.
Read More: 10 Reasons Why the Boston Red Sox-Yankees Rivalry Fuels So Much Hate
1. New York Mets
Mets fans are chaos in human form. No one complains louder, tweets faster, or clings to moral victories more proudly than this endlessly frustrated and fantastically petty group.
Read More: The 10 Pettiest NFL Fanbases of All Time
