On Saturday in Vienna, Austria, Kenyan-born runner Eliud Kipchoge became the first person ever to run a marathon in under two hours. At the conclusion of his groundbreaking run, Kipchoge clocked in at 1:59:40.

In order to achieve this milestone, Kipchoge solicited the assistance of pacemakers to keep him on track during the run, 41 in total plus a pace car. Out of those 41, he was the center of a “V formation” at any given time, often spearheaded by long-distance runners and even some former Olympians.

However, since the marathon was not an open event and included the use of rolling pacemakers, the time will not be counted as an official world record. That being said, this epic run is already being considered a historic milestone, often likened to Sir Roger Bannister breaking the threshold of four minutes when running a mile.

When asked about this triumphant moment, Kipchoge responded with three simple words: “Anything is possible.”

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Another headline-grabbing aspect of this marathon was the shoes worn by Kipchoge, newly designed by Nike. In order to garner the most media attention possible, Nike waited until the buildup to the Vienna marathon to unveil their new running shoes to be worn by Kipchoge, which they claim can improve athletic performance by 4%.

When asked what this historic moment meant to him, Kipchoge answered, “I want to inspire many people, that no human is limited.”

He overcame the major psychological hurdle that had plagued marathon runners for decades, the absolutely daunting task of completing it in under two hours. Kipchoge hopes to inspire generations of runners to come, letting them know not only through words but also his actions that they can push themselves further than they had ever thought.

“Together, when we run, we can make this world a beautiful world,” Kipchoge said after finishing.

After 13 years of battling each other in the pool, Ryan Lochte and Michael Phelps will face off, perhaps for the final time, tonight in the final round of the 200 meter individual medley at the U.S. Olympic Trials in Omaha, Nebraska.

Ryan Lochte, Michael Phelps Stage Showdown In Finals Of 200 IM

Lochte, an 11-time Olympic medalist has yet to qualify to compete in any individual events at the Rio Games next month.

LOCHTE BEATS PHELPS TO SET WORLD RECORD

A groin injury kept Lochte from the 400 IM, after he won gold in the event at the London Games in 2012. His fourth place finish in the 200 freestyle wasn’t enough to cinch a spot for Rio and he dropped out of the qualifying race for the 200 meter backstroke.

Two of the most decorated active athletes in American sport will signal the end of an era regardless of who reaches the the apex of the podium tonight.

Phelps, 32, has already declared he will retire after the close of the Rio Games.

“A hundred percent (Rio will be) the last one,” Phelps told reporters at a press conference back in December 2015. “This is 100 percent. We now have a kid coming and we’re building a family so I am stepping away and taking time to be with my family.”

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Lochte, 31, is currently the world record holder in the 200 IM, after finishing with a time of 1 minute, 49.63 seconds at the World Championships in 2011, according to the Olympian’s website.

He finished just ahead of Phelps in the semifinal heat Thursday, coming in at 1 minute, 56.71 seconds, while Phelps clocked in at 1:57.61.

“It means a lot,” Lochte said of the final showdown between the two. “I’ve been racing him in this event since, like, 2003. He’s a tough competitor. I just love racing against him because it’s a challenge.”

Lochte secured a spot on the Olympic roster in the 4x200m freestyle relay, but has yet to qualify in any individual events. The 100m fly presents another opportunity for Lochte, but he has far better chances to qualify for the event in which he’s held the world record for five years.

“Tomorrow night will definitely be a good battle between me and Michael,” Lochte said Thursday.

Phelps expects nothing less.

The most decorated Olympian in the history of the sport has already qualified in the 200m fly, but he is hungry to heap berths in the 100 fly and 200 IM for good measure.

Either way, it really boils down to one race.

“Him and I have gone back and forth a number of times in this race,” Phelps said of Lochte. “We’re going to be out and probably step on the gas a little bit more than we have in the past, and you’ll have an exciting race.”