The Summer Olympics return to Tokyo, Japan, this week the first time since 1964. The United States, which is sending more than 600 athletes to Tokyo this time around, is the overall favorite in Japan with 1/10 odds to earn both the most gold medals and the most total medals. 

China boasts the second best odds at 6/1 to win the most gold medals and 9/2 to win the most total medals. Host country Japan holds the third best odds at 25/1 to win the most gold medals (even with Great Britain and Russian OC) and 20/1 to win the most total medals.

Team USA set the pace in the 2016 Rio Olympics with 121 total medals, 46 of which were gold. China placed second with 70 total medals and 26 gold medals. And Great Britain placed third with 67 total medals and 27 gold medals. Japan finished seventh in 2016 with 41 total medals and 12 gold medals.

Check out the official odds for some of the most popular Olympics betting markets:

MOST GOLD MEDAL ODDS

United States -- 1/10

China -- 6/1

Japan -- 25/1

Great Britain -- 25/1

Russian OC -- 25/1

Germany -- 200/1

Australia -- 200/1

Netherlands -- 200/1

France -- 250/1

South Korea -- 500/1

Canada -- 500/1

MOST TOTAL MEDAL ODDS

United States -- 1/10

China -- 9/2

Japan -- 20/1

Great Britain -- 40/1

Japan -- 50/1

Germany -- 200/1

Australia -- 200/1

Netherlands -- 200/1

France -- 250/1

South Korea -- 500/1

Canada -- 500/1

MEN'S BASEBALL ODDS

Japan -- +175

South Korea -- +300

USA -- +350

Mexico -- +500

Dominican Republic -- +550

Israel -- +3000

MEN'S BASKETBALL WINNER ODDS

USA -- 1/4

Australia -- 9/1

Spain -- 11/1

Slovenia -- 17/1

France -- 19/1

Nigeria -- 35/1

Argentina -- 40/1

Italy -- 40/1

Czech Republic -- 100/1

Germany -- 100/1

Japan -- 300/1

Iran -- 500/1

WOMEN'S BASKETBALL WINNER ODDS

USA -- 1/14

Australia -- 16/1

Spain -- 20/1

France -- 22/1

Serbia -- 28/1

Canada -- 35/1

Belgium -- 50/1

China -- 90/1

Japan -- 100/1

Nigeria -- 100/1

South Korea -- 500/1

Puerto Rico -- 500/1

MEN'S BASKETBALL 3X3 WINNER ODDS

Serbia -- 13/10

Latvia -- 2/1

Russia -- OC 7/1

Netherlands -- 15/2

Poland -- 13/1

Belgium -- 16/1

China -- 35/1

Japan -- 40/1

WOMEN'S BASKETBALL 3X3 WINNER ODDS

United States -- 1/1

France -- 5/2

Russia OC -- 5/1

China -- 9/1

Japan -- 16/1

Italy -- 25/1

Romania -- 40/1

Mongolia -- 65/1

MEN'S BMX FREESTYLE WINNER ODDS

Logan Martin (Australia) -- 12/10

Rimu Nakamura (Japan) -- 17/4

Nick Bruce (USA) -- 6/1

Justin Dowell (USA) -- 13/2

Irek Rizaev (Russia OC) -- 15/1

Declan Brooks (Great Britain) -- 18/1

Daniel Dhers (Venezuela) -- 25/1

K.F.T. Esquivel (Costa Rica) -- 50/1

Anthony Jeanjean (France) -- 150/1

WOMEN'S BMX FREESTYLE WINNER ODDS

Hannah Roberts (USA) -- 10/33

Perris Benegas (USA) -- 11/1

Nikita Ducarroz (Switzerland) -- 12/1

Charlotte Worthington (Great Britain) -- 12/1

M.V.P. Grasset (Chile) -- 25/1

Lara Marie Lessmann (Germany) -- 25/1

Minato Oike (Japan) -- 40/1

Natalya Diehm (Australia) -- 50/1

Elizaveta Posadkikh (Russia OC) -- 180/1

MEN'S BMX RACE WINNER ODDS

Connor Fields (USA) -- 3/1

Niek Kimmen (Netherlands) -- 25/4

Sylvain Andre (France) -- 27/4

Simon Marquart (Switzerland) -- 7/1

Joris Daudet (France) -- 8/1

David Graf (Switzerland) -- 10/1

Twan van Gendt (Netherlands) -- 14/1

Ky Whyte (Great Britain) -- 14/1

Romain Mathieu (France) -- 22/1

Corben Sharrah (USA) -- 30/1

C.A.R. Yepes (Colombia) -- 30/1

Anthony Dean (Australia) -- 40/1

Alfredo Campo (Ecuador) -- 60/1

Joris Harmsen (Netherlands) -- 65/1

Giacomo Fantoni (Italy) -- 120/1

Gonzalo Molina (Argentina) -- 150/1

Renato Rezende (Brazil) -- 170/1

Yoshitaku Nagasako (Japan) -- 190/1

Vincent Pelluard (France) -- 190/1

Helvijs Babris (Latvia) -- 200/1

Evgeny Kleshchenko (Russia OC) -- 200/1

Tore Navrestad (Norway) -- 250/1

James Palmer (Canada) -- 400/1

WOMEN'S BMX RACE WINNER ODDS

Laura Smulders (Netherlands) -- 22/10

Alise Willoughby (USA) -- 3/1

Mariana Pajon (Colombia) -- 9/2

Payton Ridenour (USA) -- 16/1

Merel Smulders (Netherlands) -- 18/1

Saya Sakakibara (Australia) -- 25/1

Judy Bauuw (Netherlands) -- 25/1

Felicia Stancil (USA) -- 25/1

Zoe Claessens (Switzerland) -- 30/1

Natalia Afremova (Russia OC) -- 30/1

Sae Hatakeyama (Japan) -- 35/1

S.T. Christensen (Denmark) -- 50/1

Manon Valentino (France) -- 50/1

Lauren Reynolds (Australia) -- 80/1

Yaroslava Bondarenko (Russia OC) -- 110/1

Bethany Shriever (Great Britain) -- 120/1

Priscilla Carnaval (Brazil) -- 250/1

Nadja Pries (Germany) -- 300/1

Elke Wanhoop (Belgium) -- 300/1

Vineta Petersone (Latvia) -- 400/1

Rebecca Petch (New Zealand) -- 500/1

Drew Mechielsen (Canada) -- 500/1

Domenica Azuero (Ecuador) -- 500/1

MEN'S FIELD HOCKEY WINNER ODDS

Belgium -- 5/2

Australia -- 3/1

Germany -- 9/2

Netherlands -- 5/1

Argentina -- 9/1

India -- 12/1

Great Britain -- 14/1

Spain -- 16/1

New Zealand -- 20/1

Japan -- 25/1

Canada -- 66/1

South Africa -- 80/1

WOMEN'S FIELD HOCKEY WINNER ODDS

Netherlands -- 1/1

Australia -- 7/2

Germany -- 4/1

Argentina -- 5/1

Great Britain -- 10/1

New Zealand -- 25/1

Spain -- 25/1

China -- 50/1

Japan -- 50/1

Ireland -- 66/1

India -- 66/1

South Africa -- 80/1

MEN'S RUGBY 7'S WINNER ODDS

New Zealand -- 9/4

Fiji -- 5/2

South Africa -- 11/4

USA -- 7/1

Australia -- 10/1

Great Britain -- 12/1

Argentina -- 33/1

Canada -- 50/1

Ireland -- 66/1

Kenya -- 80/1

Japan -- 200/1

South Korea -- 500/1

WOMEN'S RUGBY 7'S WINNER ODDS

New Zealand -- 2/5

Australia -- 6/1

Canada -- 8/1

USA -- 9/1

France -- 12/1

Great Britain -- 16/1

Russian OC -- 33/1

Fiji -- 66/1

Japan -- 100/1

China -- 150/1

Brazil -- 250/1

Kenya -- 250/1

MEN'S SOCCER WINNER ODDS

Spain -- 5/2

Brazil -- 3/1

France -- 9/2

Germany -- 13/2

Argentina -- 13/2

Japan -- 9/1

Mexico -- 33/1

South Korea -- 33/1

Romania -- 33/1

Ivory Coast -- 50/1

Egypt -- 66/1

Australia -- 200/1

South Africa -- 250/1

Honduras -- 500/1

New Zealand -- 500/1

Saudi Arabia -- 500/1

WOMEN'S SOCCER WINNER ODDS

United States -- 8/13

Netherlands -- 6/1

Great Britain -- 8/1

Sweden -- 10/1

Canada -- 12/1

Japan -- 14/1

Brazil -- 16/1

Australia -- 25/1

China -- 35/1

New Zealand -- 100/1

Zambia -- 200/1

Chile -- 250/1

WOMEN'S SOFTBALL WINNER ODDS

USA -- 1/2

Japan -- 11/4

Canada -- 25/4

Mexico -- 25/1

Australia -- 35/1

Italy -- 80/1

MEN'S SURFING WINNER ODDS

Gabriel Medina (Brazil) -- 13/10

Italo Ferreira (Brazil) -- 11/5

Kanoa Igarashi (Japan) -- 4/1

J.J. Florence (USA) -- 6/1

Julian Wilson (Australia) -- 10/1

Jeremy Flores (France) -- 15/1

Kolohe Andino (USA) -- 20/1

Owen Wright (Australia) -- 20/1

Michel Bourez (France) -- 30/1

Hiroto Ohhara (Japan) -- 50/1

Frederico Morais (Portugal) -- 55/1

Leonardo Fioravanti (Italy) -- 65/1

Miguel Tudela (Peru) -- 100/1

Lucca Messina (Peru) -- 100/1

Billy Stairmand (New Zealand) -- 100/1

Leon Glatzer (Germany) -- 150/1

Rio Waida (Indonesia) -- 150/1

Manuel Selman (Chile) -- 250/1

Leandro Usuna (Argetina) -- 250/1

Rams Boukhiam (Morocco) -- 400/1

WOMEN'S SURFING WINNER ODDS

Carissa Moore (USA) -- 3/2

Stephanie Gilmore (Australia) -- 5/1

Caroline Marks (USA) -- 5/1

Tatiana Weston-Webb (Brazil) -- 7/1

Sally Fitzgibbons (Australia) -- 7/1

Johanne Defay (France) -- 15/1

Amuro Tsuzuki (Japan) -- 20/1

Brisa Hennessy (Costa Rica) -- 40/1

Bianca Buitendag (South Africa) -- 50/1

Maina Maeda (Japan) -- 65/1

Silvana Lima (Brazil) -- 70/1

Teresa Bonvalot (Portugal) -- 100/1

Pauline Ado (France) -- 100/1

Yolanda Sequeria (Portugal) -- 130/1

Ella Williams (New Zealand) -- 130/1

Sofia Mulanovich (Peru) -- 150/1

Leilani McGonagle (Costa Rica) -- 150/1

Daniella Rosas (Peru) -- 150/1

MEN'S VOLLEYBALL WINNER ODDS

Poland -- 7/4

Brazil -- 33/10

France -- 19/4

Russia OC -- 21/4

USA -- 25/4

Italy -- 8/1

Iran -- 40/1

Argentina -- 50/1

Canada -- 60/1

Japan -- 80/1

Tunisia -- 500/1

Venezuela -- 700/1

WOMEN'S VOLLEYBALL WINNER ODDS

China -- 11/5

USA -- 3/2

Italy -- 36/10

Serbia -- 11/2

Brazil -- 7/1

Turkey -- 30/1

Russian OC -- 35/1

Japan -- 40/1

Dominican Republic -- 130/1

South Korea -- 200/1

Argentina -- 700/1

Kenya -- 1000/1

MEN'S HANDBALL WINNER ODDS

Denmark -- 3/2

Norway -- 11/4

Spain -- 7/2

France -- 5/1

Sweden -- 13/2

Germany -- 11/1

Egypt -- 25/1

Portugal -- 40/1

Japan -- 125/1

Brazil -- 150/1

Argentina -- 500/1

Bahrain -- 1000/1

WOMEN'S HANDBALL WINNER ODDS

Norway -- 14/9

Russia OC -- 23/10

France -- 15/4

Netherlands -- 12/1

Hungary -- 16/1

Montenegro -- 18/1

Spain -- 18/1

Sweden -- 20/1

South Korea -- 28/1

Brazil -- 66/1

Japan -- 80/1

Angola -- 500/1

MEN'S WATER POLO WINNER ODDS

Hungary -- 3/2

Serbia -- 3/1

Italy -- 15/4

Croatia -- 4/1

Spain -- 5/1

Montenegro -- 6/1

Greece -- 20/1

USA -- 80/1

Australia -- 250/1

Japan -- 500/1

Kazakhstan -- 1000/1

South Africa -- 1000/1

WOMEN'S WATER POLO WINNER ODDS

USA -- 1/5

Spain -- 8/1

Hungary -- 9/1

Netherlands -- 10/1

Russia OC -- 10/1

Australia -- 11/1

Canada -- 150/1

China -- 500/1

Japan -- 1000/1

South Africa -- 1000/1

MEN'S TRIATHLON WINNER ODDS

Mario Mola (Spain) -- +200

Vincent Luis (France) -- +250

Jonathan Brownlee (England) -- +350

Kristian Blummenfelt (Norway) -- +700

Jacob Birtwhistle (Australia) -- +1000

Marten Van Riel (Belgium) -- +1100

Alex Yee (Great Britain) -- +1100

Fernando Alarza (Spain) -- +1400

Jelie Geens (Belgium) -- +1600

Henri Schema (South Africa) -- +1800

Tyler Mislawchuk (Canada) -- +2200

Javier Gomez Noya (Spain) -- +2500

Gustav Iden (Norway) -- +2800

Leo Bergere (France) -- +3300

Morgan Pearson (USA) -- +3300

Hayden Wilde (New Zealand) -- +5000

Richard Murray (South Africa) -- +6600

Jonas Schomburg (Germany) -- +6600

Casper Stornes (Norway) -- +8000

Max Studer (Switzerland) -- +10000

Bence Bicsak (Hungary) -- +15000

Dorian Coninx (France) -- +15000

Kevin McDowell (USA) -- +15000

Joao Silva (Portugal) -- +15000

Crisanto Grajales (Mexico) -- +25000

Alois Knabi (Austria) -- +25000

Joao Pereira (Portugal) -- +25000

Aaron Royle (Australia) -- +30000

Shachar Sagiv (Israel) -- +30000

Marco Van Der Stel (Netherlands) -- +40000

Jorik Van Egdom (Netherlands) -- +40000

Stefan Zachaus (Luxembourg) -- +40000

WOMEN'S TRIATHLON WINNER ODDS

Katie Zaferes (USA) -- +225

Georgia Taylor-Brown (Great Britain) -- +275

Jessica Learmonth (Great Britain) -- +300

Vicky Holland (Great Britain) -- +450

Flora Duffy (Bermuda) -- +800

Summer Rappaport (USA) -- +800

Laura Lindemann (Germany) -- +1400

Maya Kingma (Netherlands) -- +1600

Rachel Klamer (Netherlands) -- +2000

Nicola Spirig (Switzerland) -- +2000

Taylor Knibb (USA) -- +2800

Alice Betto (Italy) -- +3300

Cassandre Beaugrand (France) -- +4000

Verena Steinhauser (Italy) -- +4000

Claire Michel (Belgium) -- +5000

Miriam Casillas Garcia (Spain) -- +6600

Leonie Periault (France) -- +8000

Lisa Perterer (Austria) -- +8000

Ashleigh Gentle (Austria) -- +10000

Vittoria Lopes (Brazil) -- +10000

Luisa Baptista (Brazil) -- +15000

Vendula Frintova (Czech Republic) -- +15000

Jolanda Annen (Switzerland) -- +20000

Joanna Brown (Canada) -- +20000

Anna Godoy Contreras (Spain) -- +20000

Carolyn Hayes (Ireland) -- +20000

Jaz Hedgeland (Austria) -- +20000

Yuko Takahashi (Japan) -- +20000

Nicole Van Der Kaay (New Zealand) -- +20000

Yuliya Yelistratova (Ukraine) -- +20000

Valerie Vathelemy (Belgium) -- +30000

Lotte Miller (Norway) -- +30000

Odds courtesy VegasInsider.com