The MLB season is starting to heat up as we approach the race to reach the playoffs, every result matters as teams attempt to secure division titles and wild cards. Now more than ever, fans are emotionally invested. Top team fans are dreaming of titles and the playoffs while others, are deciding whether they'll stick by their club despite another disappointing season.
Taking this into account, the team at Casino Guru decided to find out just how loyal MLB fans are to their teams. Instead of looking at pure data such as attendance figures and social media following etc. They ran a fun and lighthearted survey of 1,500 fans asking questions measuring their commitment, emotional investment and support for their team, producing rankings for the full league.
| Rank | Team | Survey Score / 100 |
| 1 | Miami Marlins | 69.4 |
| 2 | Washington Nationals | 69.1 |
| 3 | San Diego Padres | 68.9 |
| 4 | St. Louis Cardinals | 68.7 |
| 5 | Chicago Cubs | 68.5 |
| 6 | New York Mets | 68.1 |
| 7 | Houston Astros | 68.1 |
| 8 | Arizona Diamondbacks | 67.2 |
| 9 | Los Angeles Angels | 67.1 |
| 10 | Los Angeles Dodgers | 66.4 |
| 11 | Cleveland Guardians | 66.2 |
| 12 | Kansas City Royals | 66.1 |
| 13 | Baltimore Orioles | 66.0 |
| 14 | Tampa Bay Rays | 65.9 |
| 15 | Philadelphia Phillies | 65.4 |
| 16 | New York Yankees | 65.3 |
| 17 | Milwaukee Brewers | 65.1 |
| 18 | San Francisco Giants | 65.1 |
| 19 | Toronto Blue Jays | 64.4 |
| 20 | Detroit Tigers | 64.3 |
| 21 | Seattle Mariners | 64.3 |
| 22 | Boston Red Sox | 64.2 |
| 23 | Minnesota Twins | 63.8 |
| 24 | Texas Rangers | 63.7 |
| 25 | Atlanta Braves | 62.9 |
| 26 | Pittsburgh Pirates | 62.3 |
| 27 | Cincinnati Reds | 62.2 |
| 28 | Chicago White Sox | 61.9 |
| 29 | Colorado Rockies | 57.7 |
| 30 | Oakland Athletics | 57.6 |
Sitting at the top of the fan loyalty standings is the Miami Marlins. Despite having a rough few seasons, the survey results have shown the Marlins have stuck by their team. Key stats from the survey for Marlin fans show that 67% have never stopped watching or supporting the team because of poor performance, and almost two thirds of fans would choose a Marlins playoff game over a major social event.
Coming in at second are the supporters of the Washington Nationals. The fans have stuck with their team through a lengthy rebuild which saw them finish bottom of the NL East in 2025. Key figures from the survey show 53% of fans would prioritize a playoff game over a major social event and 32% attend at least 11 home games per season, almost 5x the survey average. It seems supporters are hoping their loyalty pays off over the next few years.
Coming in third are fans of the San Diego Padres. Padres supporters have stood by their team through multiple years of inconsistency, reaching the postseason twice in the last five years. This season they remain firmly in the race and will need their fans to help push them through. Padres fans seemingly show their loyalty in a slightly more significant approach. 58% say they would name a child after a Padres legend and 32% would get a team-related tattoo.
A notable mention in our top five is the Chicago Cubs, a team famously unlucky for over 100 years (1908 - 2016) for never winning a championship thanks to the curse of the Billy Goat. Even so, Cubs fans find themselves towards the top of the loyalty rankings and have missed four postseasons through the last five seasons, further highlighting their commitment.
Sat at the bottom of the MLB fan loyalty rankings are the Oakland Athletics. The A's fans have gone through a quite noticeable rough patch over the past five years which included two 100+ loss seasons. Fans have also seen their team now relocate from Oakland to Las Vegas, with the team currently playing in West Sacramento while they wait for the Vegas stadium to be built - further highlighting a disconnect from the team and fans.
Some key stats stand out for the A's with just 10% of fans prioritizing a playoff game over a major social event compared to the 40% league average. Additionally, only 10% of fans spend more than $250 annually, and 0% said they would get a team-related tattoo.
Sitting in second bottom of the loyalty rankings are fans of the Colorado Rockies. Supporters of the Rockies have also gone through a tough period as of late, missing five postseasons in the last five years. These struggles have continued this season, and they find themselves sat bottom of the NL West. Key figures from the survey show that only 68% of fans said they would never switch teams if another team started performing better, compared with a 95% league average. Plus, only 33% would choose a playoff game over a major social event, compared to the 40% league average.
Finishing up the bottom three in the MLB loyalty rankings are fans of the Chicago White Sox, sitting on the opposite side of the table compared to their cross-city rivals. White Sox fans have had to endure a real struggle following winning the AL Central in 2021. They have since failed to reach the postseason and in 2024 they recorded the most losses in the modern era at 121. Key stats from the survey showing a lack of loyalty include; 24% of fans said they had stopped supporting or watching for a full season or more, far above the 3.1% survey average. To add, only 6% of fans would travel at least 250 miles to watch their team, and only 6% would get a team-related tattoo.
A survey of 1,500 MLB fans across the United States was conducted on Prolific to identify the league's most loyal fanbases.
Respondents answered questions covering long-term commitment, emotional investment and behavioral loyalty, including whether they would continue supporting their team through poor performances, prioritize games over major social events, attend home games, travel to watch their team and spend money supporting the club.
Each response was assigned a weighted value based on its ability to differentiate levels of fan loyalty. Individual responses were combined to create a Fan Loyalty Score out of 100, and the average score of supporters for each MLB team was used to produce the final rankings.
Team sample sizes varied. Rankings are based on the average Fan Loyalty Score of surveyed supporters for each MLB team and should be interpreted as indicative rather than representative of each fanbase as a whole.
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