Americans have shown that they are the best in the world in the water, taking home a handful of gold medals already in the opening week's swimming events. There will be no eight gold medal performances in these Olympics, but the United States still have a strong hold on the sport.
Some swimmers, like Phelps, have been a household name for years, but others are making a name for themselves in London.
One of the most intriguing stories coming into the London Olympics was the battle of men's swimming powers between Lochte and Michael Phelps. Fans didn't have to wait long for them to match up; the first chance to see them compete came in the evening of Day 1.
Michael Phelps barely qualified for the final of the 400-meter individual medley, the same event he set a world record in during the 2008 Olympics. Meanwhile, Lochte had won the event in each of the last two world championships, so fans were looking forward to a fantastic race.
Instead, Lochte took the lead after 100 meters and never looked back. He coasted to a time of 4:05.18, defeating silver medalist Thiago Pereira by 3.68 seconds. Phelps came in fourth, just over four seconds behind Lochte's impressive mark.
After winning gold on the 4x200m freestyle relay team in Athens eight years ago, Dana Vollmer didn't qualify for the 2008 Olympics in Beijing. Still just 24-years-old, she is out to prove that she's one of the best in the world in these games.
Who has had the most impressive performance so far in London?
On Day 2 of the London Olympics, Vollmer saw her first chance at a gold medal in the final of the 100-meter butterfly. To get it, she would have to defeat Sarah Sjostrom of Sweden, the world record holder in the event.
Vollmer wasn't phased and took home the win in world-record fashion, becoming the first woman ever to break the 56-second mark in the event. She took the gold by nearly a full second over her competitors and cemented her place as one of the top female swimmers.
Heading into Day 4 of the 2012 Olympic games, Allison Schmitt was already well-decorated. She was on the 4x100-meter freestyle team that won bronze and took home a silver medal in the 400-meter freestyle. The only thing missing was gold.
The 200-meter freestyle had several strong competitors. Italy's Federica Pellegrini was the world record holder in the event, and fellow American Missy Franklin was coming off a gold in the 100-meter backstroke.
Schmitt blew the competition away, setting an Olympic record on the way to her third medal of the Games. She took the race by nearly two seconds over the field, while Pellegrini and Franklin both failed to make the podium.