Who is Jack Alexy? Here’s What to Know About His Swimming Milestones, Parents, and Estimated Net Worth

Jack Alexy has emerged all the way from high school swims to now internationally as one of Team USA's premier sprint freestyle talents. Alexy, who celebrated his 20th birthday on January 19, was a national-championship caliber swimmer at Delbarton School in Morristown, New Jersey, where he won state titles in the 50m and 100m freestyle.

He carried that very early success forward through 2019, when he aided Team USA to a gold medal at the World Junior Championships in the 4x100m freestyle relay. The 18-year-old, who clocked a 48.69 in the 100m freestyle at the 2021 Olympic Trials to set the U.S. national age-group record previously held by Caeleb Dressel,

Jack Alexy’s rise through national and international swimming

Jack Alexy was at it again in the pool at the 2023 World Aquatics Championships, earning silvers in the 50m and 100m freestyle, with a gold (men's 4x100m medley relay), silver (mixed 4x100m free relay), and bronze (men's 4x100m free relay).

A week later, he followed that up with a silver medal in the 100m freestyle at the 2024 U.S. Olympic Trials that qualified him for the Olympic team.

Jack secured gold in the 4x100m freestyle relay on his USA team at the Paris Olympics, alongside winning a silver medal in the prelims for the medley relay. In the final of the 100m freestyle, he finished seventh. He then successfully defended his title in the 100m freestyle when he won the world championship final at the Toyota National Championships in a final time of 47.17 after a meet-record 46.99 in the prelims in 2025.

Supportive family background and athletic roots

A strong family foundation paved Jack´s way to the top. His father, Matthew Alexy, is a corporate executive with experience in risk management and finance. His mother, Lynn Alexy, was a former Division I basketball player at Notre Dame in the 1980s. More from Jack also comes from a family of athletes—his grandfather Bill Ebben played in the NBA with the Detroit Pistons for a bit.

Jack was one of four siblings- Kate, Max, and Rob.

All of them were competitive swimmers as well, growing up. Jack credited the Alexy household with instilling a culture of discipline and teamwork that he continues to carry with him throughout his life of excellence. His brother Rob swam with him at the University of California, Berkeley, both having spent time in one of the nation's top collegiate swim programs.Also Read: 12-year-old Chinese swimmer turns heads but how young is too young in professional sport?

Net worth and NIL earnings of Jack Alexy in 2025

Despite Jack Alexy being an NCAA amateur swimmer, his rising stardom is receiving more and more NIL opportunities. Exact figures are unknown, but estimates have put his net worth at approximately $3.6 million as of 2025. This is a slow crawl and solid growth from previous years, driven by sponsorships, brand partnerships, and more media exposure in the years after his Olympic and World Championship success.That number is only going to go up as his career progresses. Jack Alexy, a swimming star in the making, and a name to remember on the world sports stage.