The US team comprised of Michael Phelps, Garrett Weber-Gale, Cullen Jones, Jason Lezak, Nathan Adrian, Ben Wildman-Tobriner, and Matt Grevers won the gold medal for the men's 4 x 100 meter freestyle swimming relay in the 2008 Summer Olympics.
Dwyer of US won the bronze medal in the men's 200 m freestyle at the Rio 2016 Olympics.
Mack Horton of Australia won the gold medal for the men's 400 m freestyle at the Rio 2016 Olympics.
Kyle Chalmers of Australia won the gold medal in the men's 100 m freestyle at the Rio 2016 Olympics.
Maurice Greene of the USA in 9.87s
Park Taehwan (Korea) won the gold medal in the men's 400 meter freestyle swimming in the 2008 Summer Olympics.
Brent HaydenCanada (CAN)
Cullen Jones won a gold medal in the 4x100 freestyle relay in 2008.
James MagnussenAustralia (AUS)
Bronte BarrattAustralia (AUS)
Ryan Cochrane Canada (CAN)
Nathan AdrianUnited States (USA)
Allison SchmittUnited States (USA
Marleen Veldhuis Netherlands (NED)
Aliaksandra Herasimenia Belarus (BLR)
Oussama Mellouli Tunisia (TUN)
Sun Yang China (CHN)