From running times to golf scores to soccer points, there are plenty of numbers to keep track of during the 2016 Olympics in Rio de Janeiro. The games start Aug. 5 with the opening ceremony at Rio's Maracana stadium and will continue for 17 days during which 27 sports and 306 medal events will be contested. More than 11,000 athletes from 206 countries around the world will participate in the games — all hoping to bring home a medal and earn their place in history.

Want more Olympic stats? Check out this list of numbers you need to know:

It's a first

It's the first time any South American country will host the Olympic Games.

Christ The Redeemer, Brazil The Maracana stadium, site of the opening ceremonies, can be seen in the background of this photo of Rio's famous Christ The Redeemer statue. (Photo: Mario Tama/Getty Images)

2 sports making a comeback: Golf and rugby

Golf was last played at the Olympics in 1904. Rugby was last played at the Summer Games in 1924.

Olympic Rugby Players from Brazil (right) and Colombia duke it out in a semi-final Rugby Sevens match in the lead up to the Olympic Games. (Photo: Christophe Simon/Getty Images)

16: Age of the youngest member of Team USA, Kanak Jha

Jha turned 16 on June 19, 2000.

22: The number of medals won by Michael Phelps, including 18 gold

He has the most Olympic medals of any athlete from any nation in Olympic history. Will he increase his count at this year's games?

Michael Phelps Swimmer Michael Phelps kisses his gold medal after winning the men's 4x100 medley relay final during the swimming event at the London 2012 Olympic Games. (Photo: Fabrice Coffrini/Getty Images)

27: Height difference between Team USA's shortest athlete and its tallest

Gymnast Simone Biles is 4 feet 8 inches and basketball players Demarcus Cousins and DeAndre Jordan are 6 feet 11 inches. Biles recently posted a tweet of her standing next to volleyball player David Lee, who is 6 feet 8 inches.

52: Age of the oldest athlete on team USA

Phillip Dutton will be competing in his sixth Olympics in Rio, making him only the ninth person in U.S. history to do so.

Phillip Dutton Dutton competes on horse Mystery Whisper during the 2012 Olympic Games in London. (Photo: John MacDougall/Getty Images)

292: Number of women representing Team USA this year

That's the most at any games in Olympic history.

Team USA Women's Soccer Gold medalist Team USA pose for photographers after the podium ceremony of the women's soccer finals at the 2012 Games in London. (Photo: Martin Bernetti/Getty Images)

555: Number of athletes representing Team USA

Team USA athletes Team USA is comprised of 189 returning Olympians, including three six-time Olympians, seven five-time Olympians, 17 four-time Olympians, 50 three-time Olympians and 112 two-time Olympians. (Photo: lazyllama/Shutterstock)


That's the cost in U.S. dollars for one ticket to the opening ceremonies on Aug. 5 — as of this writing.

Olympic spectator Ticket prices for Olympic events range from $40 to $4,600 a piece. (Photo: Franck Fife/Getty Images)


Calories burned by cyclists during the Olympic road race event. (That's the equivalent of about eight Big Macs.)

Taylor Phinney Cyclist Taylor Phinney competes in the men's individual time trial road cycling event in London. (Photo: Odd Anderson/Getty Images)

3.6 billion

Number of people around the world expected to watch the Rio Games.

Watching the Olympics Fans from around the world will come together to watch the games this summer in Rio. (Photo: Buddhika Weerasinghe/Getty Images)

$11.5 billion

Estimated cost of hosting the event this year in Rio.

Olympic construction Construction of the Olympic Park in Rio de Janeiro in the lead up to the games. (Photo: Mario Tama/Getty Images)

Sources: WalletHub, GB Energy Supply, Team USA

The Rio Olympics, by the numbers
These are the numbers that everyone is talking about as we head into this summer's Olympic games.