In the world of competitive swimming, age records are made to be broken, but few have shattered expectations quite like Yu Zidi. At just 12 years old, this Chinese swimming prodigy has captured the attention of the entire aquatic sports community with her extraordinary debut at the 2025 World Aquatics Championships in Singapore.
Breaking Barriers Before Breaking Records
What makes Yu Zidi’s story so remarkable isn’t just her age—it’s how she earned her place on the world stage. World Aquatics has a minimum age requirement of 14 for the world championships, but Yu’s qualifying times were so exceptional that she received special permission to compete. Her performances had already surpassed senior ‘A’ standards, leaving officials with little choice but to recognize her extraordinary talent.
Yu Zidi was born in October 2012 in Baoding, Hebei Province, China, and her swimming journey began when her father took her to a water park at around six years old. What started as family fun has evolved into something truly special, with Yu holding the fastest-ever 200m IM for her age (2:10.63) before her championship performance.
A Performance for the Ages
Yu’s debut at the World Championships was nothing short of spectacular. She put up a time of 2:10.22 to earn the 7th seed for the women’s 200m IM final, immediately announcing her arrival on the international stage. But the young swimmer wasn’t done impressing.
In the final, Yu delivered a performance that will be remembered for years to come. She clocked 2:09.21 to take 4th in the 200 IM World Championship final, finishing fourth by just .06 seconds behind Canada’s Mary-Sophie Harvey for the bronze medal. The margin was heartbreakingly small, yet the achievement was monumentally significant. In the end, it was Summer McIntosh who secured her second gold at the 2025 World Aquatics Championships in Singapore, speeding past the competition to win the women’s 200m IM ahead of Alex Walsh of the U.S. and Canada’s Mary-Sophie Harvey.
But what’s particularly impressive about Yu’s performance is her tactical maturity. She managed her effort across heats, semis and finals in her first international meet in a world class field and dropped time each time. This level of race strategy and improvement under pressure is rare in swimmers of any age, let alone a 12-year-old making her international debut.
A New Chapter in Swimming History
Yu’s appearance at the championships represents more than just an individual achievement—it marks a potential turning point in competitive swimming. She became one of the youngest swimmers to make their debut in an international event, setting a precedent that may inspire other young talents worldwide.
The swimming community has taken notice. Experts and fans alike are drawing comparisons to legendary swimmers, with many noting that we’ve never witnessed a competitor this young performing at such an elite level. Her story echoes the early careers of swimming icons like Michael Phelps, who also showed exceptional promise at a young age, though perhaps not quite this young.
The Road Ahead
While Yu’s immediate future in international competition faces some challenges—she turns 13 in October so would not be eligible until 2027 World Junior Championships—her talent is undeniable. She’s competing in three events in Singapore including the 400 IM and the 200 butterfly, giving fans multiple opportunities to witness her remarkable abilities.
Her story also highlights the ongoing debate about youth in elite sports. While her achievements are celebrated, they also raise important questions about the pressures and expectations placed on young athletes. The swimming world will be watching closely to see how Yu’s career develops and how the sport adapts to accommodate such exceptional young talent.
A Moment to Remember
Yu Zidi’s performance at the 2025 World Aquatics Championships in Singapore will be remembered as a watershed moment in swimming history. Missing a medal by just six-hundredths of a second, she proved that age is no barrier to excellence when combined with exceptional talent, dedication, and the right support system.
As the swimming world watches this young sensation continue her journey, one thing is certain: Yu Zidi has announced herself as a force to be reckoned with, and the future of competitive swimming looks brighter than ever. Her story serves as an inspiration to young athletes everywhere that with enough passion and perseverance, even the most ambitious dreams can become reality—regardless of age.
In years to come, when swimming historians look back at pivotal moments in the sport, July 2025 in Singapore will surely be marked as the moment when a 12-year-old from China showed the world that greatness knows no age limit.

