The 2016 Summer Olympics in Rio de Janeiro start Friday.
Rio de Janeiro is the first city in South America to host the Olympics, which run through Aug. 21.
Here’s a look at the telling Olympic numbers prior to the start of the 2016 Games.
Editor’s Note: Eastern time is used throughout this story.
11,000-plus athletes
More than 11,000 athletes are expected to compete in the 2016 Olympics. (Rio2016.com)
28 sports
There are 28 sports and 42 disciplines under the official program, which include 306 medal events. (Associated Press)
6,755 hours
The networks and digital platforms of NBCUniversal will present 6,755 hours of the 2016 Summer Olympics. (TeamUSA.org)
37 competition venues
There are 37 competition venues in the 2016 Olympics, including five soccer stadiums located outside of Rio. (Associated Press and Rio2016.com)
205 countries
Athletes from 205 national Olympic committees are expected, along with a team of refugee athletes competing under the Olympic flag. (Associated Press)
554 U.S. athletes
The 554-member roster is comprised of 262 men and 292 women, marking the most women who have ever competed for any nation in Olympic Games history.
For only the second time in history, the U.S. Olympic roster features more female athletes than male athletes.
The 2016 U.S. Olympic Team features 189 returning Olympians. (TeamUSA.org)
85,000 security personnel
A total of 85,000 security personnel are expected when the Rio Olympics start. (Yahoo Sports)
9.58 seconds
Usain Bolt set the world record time in the 100-meter dash at the 2009 IAAF World Championships in Berlin with a time of 9.58 seconds.
The Jamaican sprinter previously held the world record in the 100-meter dash with a time of 9.69 seconds, which he ran in the 2008 Summer Olympics in Beijing despite slowing down to celebrate before he finished.
Bolt will attempt to become the first man to win three Olympic titles in the 100-meter dash.
The finals for the men’s 100-meter dash at Summer Olympics is scheduled for Aug. 14 around 9:25 p.m.
22 medals
U.S. swimmer Michael Phelps has won 22 medals (18 gold, two silver and two bronze) dating back to the 2004 Summer Olympics in Athens.
Phelps has won more medals than any Olympian ever. U.S. athletes The 31-year-old is the first U.S. male swimmer to make five Olympic teams in his career (2000, 2004, 2008, 2012 and 2016). (Yahoo Sports)
22 medals
U.S. swimmer Michael Phelps has won 22 medals (18 gold, two silver and two bronze) dating back to the 2004 Summer Olympics in Athens.
Phelps has won more medals than any Olympian ever. U.S. athletes 13 years
Phelps has won more medals than any Olympian ever. U.S. athletes The 13-year-old swimmer lives in London, and will compete for Nepal at the Olympic Games in the women’s 100-meter backstroke.
Phelps has won more medals than any Olympian ever. U.S. athletes Singh also survived the April 2015 Nepal earthquake while in Kathmandu (the country’s capital), which killed about 9,000 people. (Rio2016.com)
22 medals
U.S. swimmer Michael Phelps has won 22 medals (18 gold, two silver and two bronze) dating back to the 2004 Summer Olympics in Athens.
Phelps has won more medals than any Olympian ever. U.S. athletes Hanna, who has three grandchildren, is the oldest Australian ever to compete at the Olympics.
Phelps has won more medals than any Olympian ever. U.S. athletes Biles posed for a photo on her Twitter page paired next to volleyball player David Lee, who is 6 feet, 8 inches.
22 medals
U.S. swimmer Michael Phelps has won 22 medals (18 gold, two silver and two bronze) dating back to the 2004 Summer Olympics in Athens.
Phelps has won more medals than any Olympian ever. U.S. athletes
size difference in olympians doesn't matter, depending on what sport you do 😉 6'8" & 4'8" pic.twitter.com/xiU9zIBXJH
— Simone Biles (@Simone_Biles) August 2, 2016