2016 Rio Olympics odds: Who are the gold medal favorites?

With the 2016 Rio Olympics now officially underway, Las Vegas sports book Bovada has released its odds in a number of different categories.

Bovada has the U.S. (2/13) and China (4/1) as heavy favorites to capture the most gold medals at the games.

American athletes Michael Phelps (swimming), Ryan Lochte (swimming) and Justin Gatlin (track and field) are at or near the top of the odds for their events.

Phelps has 1/1 odds to win the 100m butterfly and 4/5 in the 200m individual medley with Lochte right behind at 2/1.

Gatlin has the best odds to unseat Jamaica's Usain Bolt in the 100m (8/5) and 200m (3/1).

However, Jamaica is still expected to dominate with Bolt favored in the 100m (1/2) and 200m (4/13) while their 4x100m men's (1/2) and women's (2/3) relay teams are projected for gold as well.

Host Brazil is anticipated by Bovada to win in men's and women's beach volleyball.

Here are the odds:

Most Gold Medals

USA 2/13

China 4/1

Great Britain 50/1

Australia 66/1

Germany 66/1

Russia 66/1

France 75/1

Japan 75/1

South Korea 80/1

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USA - Total Gold Medals

Over 42.5 -140 (5/7)

Under 42.5 +110 (11/10)

USA - Total Medals

Over 103.5 -175 (4/7)

Under 103.5 +125 (5/4)

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Canada - Total Gold Medals

Over 2.5 -140 (5/7)

Under 2.5 +110 (11/10)

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Canada - Total Medals

Over 17.5 -125 (4/5)

Under 17.5 EVEN (1/1)

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Men's Basketball - Winner

USA 1/16

Spain 10/1

France 14/1

Serbia 22/1

Brazil 28/1

Lithuania 28/1

Argentina 33/1

Croatia 50/1

Australia 125/1

China 500/1

Nigeria 500/1

Venezuela 500/1

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Women's basketball - Winner

USA 1/14

Australia 17/2

Spain 14/1

France 20/1

Serbia 28/1

Brazil 33/1

Canada 40/1

Turkey 50/1

Belarus 125/1

China 150/1

Japan 500/1

Senegal 750/1

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Track and Field Odds

Men's 100m - Winner

Usain Bolt (JAM) 1/2

Justin Gatlin (USA) 8/5

Trayvon Bromell (USA) 11/1

Yohan Blake (JAM) 12/1

Andre De Grasse (CAN) 22/1

Jimmy Vicaut (FRA) 28/1

Marvin Bracy (USA) 50/1

Nickel Ashmeade (JAM) 50/1

Jaques Harvey (JAM) 66/1

Keston Bledman (TTO) 80/1

James Ellington (GBR) 100/1

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Women's 100m - Winner

Dafne Schippers (NED) 3/2

Elaine Thompson (JAM) 9/4

Shelly Ann Fraser-Pryce (JAM) 17/4

Tori Bowie (USA) 9/2

English Gardner (USA) 11/2

Tianna Bartoletta (USA) 16/1

Murielle Ahoure (CIV) 18/1

Blessing Okagbare (NIG) 40/1

Kelly-Ann Baptiste (TTO) 125/1

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Men's 200m - Winner

Usain Bolt (JAM) 4/13

Justin Gatlin (USA) 3/1

LaShawn Merritt (USA) 15/2

Yohan Blake (JAM) 14/1

Andre De Grasse (CAN) 28/1

Ameer Webb (USA) 33/1

Alonso Edward (PAN) 40/1

Nickel Ashmeade (JAM) 50/1

Anaso Jobodwana (RSA) 50/1

Ramil Guliyev (AZE) 100/1

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Women's 200m - Winner

Dafne Schippers (NED) 4/9

Elaine Thompson (JAM) 12/5

Tori Bowie (USA) 9/2

Murielle Ahoure (CIV) 33/1

Dina Asher-Smith (GBR) 33/1

Veronica Campbell-Brown (JAM)50/1

Jenna Prandini (USA) 80/1

Rosangela Santos (BRA) 80/1

Deajah Stevens (USA) 80/1

Jodie Williams (GBR) 100/1

Ivet Lalova (BUL) 150/1

Ella Nelson (AUS) 150/1

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Men's 4x100m Relay - Winner

Jamaica 1/2

USA 7/5

Great Britian 22/1

Canada 28/1

France 28/1

Antigua And Barbuda 33/1

China 40/1

Germany 50/1

Trinidad and Tobago 50/1

South Africa 66/1

Bahamas 80/1

Brazil 100/1

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Women's 4x100m Relay - Winner

Jamaica 2/3

USA 6/5

Trinidad and Tobago 14/1

Netherlands 16/1

Great Britain 22/1

Germany 40/1

Brazil 80/1

Canada 80/1

China 100/1

Italy 100/1

Poland 125/1

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Men's Decathlon - Winner

Ashton Eaton (USA) 1/9

Damian Warner (CAN) 17/2

Rico Freimuth (GER) 22/1

Larbi Bourrada (ALG) 40/1

Jeremy Taiwo (USA) 40/1

Kai Kazmirek (GER) 50/1

Zach Ziemek (USA) 50/1

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Swimming Odds

Men's 100m Butterfly - Winner

Michael Phelps (USA) 1/1

Chad Le Clos (RSA) 2/1

Laszlo Cseh (HUN) 7/2

Joseph Schooling (SIN) 19/2

Tom Shields (USA) 14/1

Konrad Czerniak (POL) 33/1

Li Zhuhao (CHN) 40/1

Piero Codia (ITA) 66/1

Mehdy Metella (FRA) 66/1

Evgeny Koptelov (RUS) 80/1

Pawel Korzeniowski (POL) 80/1

Matteo Rivolta (ITA) 80/1

Alexsandr Sadovnikov (RUS) 80/1

Jeremy Stravius (FRA) 80/1

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Men's 200m Individual Medley - Winner

Michael Phelps (USA) 4/5

Ryan Lochte (USA) 2/1

Kosuke Hagino (JPN) 3/1

Thiago Pereira (BRA) 14/1

Shun Wang (CHN) 28/1

Hiromasa Fujimori (JPN) 66/1

Henrique Rodrigues (BRA) 80/1

Federico Turrini (ITA) 80/1

Simon Sjödin (SWE) 100/1

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Men's 200m Butterfly - Winner

Laszlo Cseh (HUN) 6/5

Michael Phelps (USA) 5/4

Chad Le Clos (RSA) 13/4

Daiya Seto (JPN) 14/1

Joseph Schooling (SIN) 18/1

Jan Świtkowski (POL) 28/1

Masato Sakai (JPN) 33/1

Tom Shields (USA) 33/1

Viktor Bregner Bromer (DEN) 40/1

Grant Irvine (AUS) 50/1

Kenderesi Tamás (HUN) 50/1

Louis Croenen (BEL) 66/1

Leonardo de Deus (BRA) 66/1

Jordan Coelho (FRA) 80/1

David Morgan (AUS) 100/1

Francesco Pavone (ITA) 100/1

Stefanos Dimitriadis (GRE) 150/1

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Men's Beach Volleyball - Winner

Cerutti/Oscar Schmidt (BRA) 5/2

Dalhausser/Lucena (USA) 13/4

Brouwer/Meeuwsen (NED) 11/2

Nummerdor/Varenhorst (NED) 9/1

Pedro Solberg/Evandro (BRA) 9/1

Samoilovs/Smedins (LAT) 16/1

Herrera/Gavira (ESP) 18/1

Fijalek/Prudel (POL) 22/1

Losiak/Kantor (POL) 22/1

Lupo/Nicolai (ITA) 25/1

Gibb/Patterson (USA) 28/1

Ranghieri/Carambula (ITA) 28/1

Semenov/Krasilnikov (RUS) 33/1

Böckermann/Flüggen (GER) 80/1

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Women's Beach Volleyball - Winner

Larissa/Talita (BRA) 2/1

Walsh Jennings/Ross (USA) 9/4

Ludwig/Walkenhorst (GER) 4/1

Agatha/Barbara (BRA) 11/2

Meppelink/Van Iersel (NED) 14/1

Pavan/Bansley (CAN) 18/1

Borger/Büthe (GER) 28/1

Menegatti/Orsi Toth (ITA) 40/1

Bawden/Clancy (AUS) 66/1

Liliana/Elsa (ESP) 80/1

Heidrich/Zumkehr (SUI) 150/1

Forrer/Vergé-Dépré (SUI) 150/1