Fans Bring New Vitality With Higher Engagement and Strong Purchasing Power

Trend Hunter | KBO Pro Baseball Evolves into a Cultural Phenomenon

Baseball fans in their 20s and 30s differ from older generations in how they enjoy the sport. As a generation with a real passion for fandom culture, they bring an unmatched level of enthusiasm. Baseball clubs are tapping into this demographic as a key driver of growth.

The idol fandom generation brings something different

Women in their 20s and 30s are showing exceptionally higher engagement among baseball fans. Last season, they accounted for 58.7% of all All-Star Game ticket purchases. As such, they are actively participating in various events, emerging as an influential force in the pro baseball scene. Having grown up with idol fandom culture, this generation is bringing the same fan culture to baseball to support clubs and players. Practices once rare in the baseball world—such as fan-made merchandise, on-site fancams, and fan art—are becoming increasingly common. Some fans even organize birthday events at cafes or fund subway billboard ads through fan-led fundraising campaigns. One reason women in their 20s and 30s are drawn to baseball players is accessibility—especially when compared to idol fandoms. While seeing an idol up close often requires expensive tickets and comes with many restrictions, simply attending a baseball game allows fans to see players up close, get autographs, and take photos. In many ways, “fangirling” feels much more accessible at the stadium. According to a KBO survey, this demographic also tends to spend more on team merchandise, prompting clubs to create more tailored content and merchandise products to match their interests.

Club merchandise inspired by idol fandom culture

Taking a page from idol fandom culture, KBO clubs are actively exploring new ways to extend baseball’s popularity beyond the stadium. One example is photocards—a key element of idol fan culture. The league launched KBO Official Collection Card that sparked a nationwide craze, quickly selling out across the nation. Building on this momentum, individual clubs have launched their own player photo cards, tapping into the culture code of millennial and Gen Z fans who grew up with idol fandom culture. Clubs are also changing how they promote their teams and players—by putting the spotlight on fans’ favorite players and turning them into stars. A prime example is Kia Tigers‘ Kim Do-young, who gained a strong following for both his talent and charisma. In 2024 alone, the player-branded jerseys topped 10 billion KRW in sales—a testament to the strong purchasing power of fans. Building on that momentum, Kia Tigers released a storybook in March 2025 featuring photos and a personal interview about his career. These efforts go beyond simply pleasing fans—they’re part of a broader strategy to elevate individual players’ brand value and cultivate a stronger sports fandom culture.

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