The 2025 USA Swimming Championships concluded at the Indiana University Natatorium in Indianapolis, showcasing the emergence of a new generation of U.S. sprinting talent. On June 3, Jack Alexy and Patrick Sammon posted standout performances in the men’s 100 m freestyle, with Alexy touching in 46.99 seconds and Sammon following with a 47.47 — both placing them firmly among the top U.S. prospects for the World Aquatics Championships roster
Their blazing individual times translated into equally compelling relay splits during the 4×100 m freestyle relay heats and finals. Both Alexy and Sammon clocked sub‑48 second splits—an indicator of elite relay capability and a key metric used by selectors for international competition assignments
In the championship final, the depth of the U.S. sprint squad was on full display. Alexy, Sammon, Chris Guiliano, and Jonny Kulow all dipped under 48 seconds in the individual 100 free, reflecting a healthy competitive field. With Alexy’s sub‑47 individual and Sammon’s strong showing, analysts are projecting these two to be critical components of the U.S. quartet in Singapore at the 2025 World Aquatics Championships scheduled for July 30 to 31
Longtime swimming media outlets have spotlighted Alexy’s insertion into the elite tier of international sprinters. Combined with Guiliano and Kulow, Alexy and Sammon have formed a relay quartet that some projections say could deliver the Americans their first men’s 4×100 free relay world title without Caeleb Dressel on the team since 2009.
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Jack Alexy’s progression has been nothing short of meteoric. A standout at Delbarton School in New Jersey and a decorated collegiate swimmer at Cal, Alexy first made waves internationally as part of the U.S. relay squad at the 2019 World Junior Championships
His breakthrough arrived in 2023 during the Fukuoka World Championships, where he captured two individual silvers in the 50 m and 100 m freestyle and helped the U.S. earn relay medals. At the December 2024 Short Course World Championships in Budapest, Alexy helped shatter the overall 4×100 free relay world record with a blistering 45.05 lead‑off leg
At Indianapolis, Alexy’s 46.99 formally punched his ticket to Singapore and positions him among the fastest in the world this year, joining names like Pan Zhanle, David Popovici, Kyle Chalmers, and Guilherme Caribé
Patrick Sammon, a top-tier sprinter for Arizona State, has quietly climbed through NCAA ranks to become a national threat. While Alexy peaked earlier, Sammon’s steady rise has him now firmly in the mix for international relay selection. His time of 47.47 places him inside the top five U.S. men in 2025 and opens doors to relay duty
At the national championships, his placement just behind Alexy and Guiliano reflected both consistency and momentum. Combined with his relay split under 48 seconds, he demonstrated readiness for high-pressure team contexts
With Caeleb Dressel retired from long‑course competition after the Paris 2024 Olympics, the U.S. men’s relay program has entered a transitional phase. Yet there is cause for confidence. Jack Alexy is viewed as a world‑class anchor, while swimmers like Guiliano, Kulow, and Sammon bring depth at the other legs
Swimming analysts have noted that with this quartet, the U.S. will head into the Singapore World Championship as strong contenders in the men’s 4×100 free relay—a title within grasp if they replicate the cohesion and speed shown at Nationals
These performances come amid growing international competition in sprint freestyle. China’s Pan Zhanle, Romania’s David Popovici, and Australia’s Kyle Chalmers have all posted world-leading times in 2025, making the men’s 100 free one of the most stacked fields in recent memory. Yet with Alexy dipping under 47 and Sammon breaking into sub‑48 territory, the U.S. has positioned multiple athletes to shake up the medal prospects in Singapore
The strength of U.S. relay depth is increasingly important in ensuring sustained dominance beyond individual events. With four swimmers ready to swim at or below 48 seconds, the U.S. can rotate fresh legs through prelims and finals—a crucial advantage in a grueling global competition schedule
The results from June’s USA Swimming Championships in Indianapolis—highlighted by Alexy’s 46.99 and Sammon’s 47.47, as well as their strong relay splits—underscore the emergence of a new sprint relay era for the U.S. Swim selection officials and analysts alike are watching closely. Alexy appears locked for relay leadership in Singapore, and Sammon’s ascension has made him a logical partner on the squad
As Team USA heads to the World Aquatics Championships beginning July 30 in Singapore, the performances of these young men suggest American sprint relay dominance may continue, even as the sport evolves post‑Dressel. Their depth, versatility, and speed position them to bring home relay medals—and perhaps gold—in a fiercely competitive global field.