The United States had more success than any country in the last Olympics, and the 2016 Rio Games are expected to produce similar results. A day before the opening ceremony, the U.S. is heavily favored to lead the gold medal count.

The U.S. has the best odds to win the most gold medals, by far, as a 2/13 betting favorite. Four years ago, the U.S. finished first with 46 gold medals and 103 medals in total. In Rio, the U.S. has been given 5/7 odds to win more than 42.5 gold medals.

China has been given the best chance to unseat the U.S. as the most dominant Olympic country with 4/1 odds. It wasn’t too long ago when China did win more gold medals than the U.S., and they did so handily when they were the host nation. China led the 2008 Beijing Olympics with 51 gold medals, holding a 15-medal advantage over the U.S.

Even when China beat the U.S. in first-place finishes eight years ago, the U.S. still led the way with 110 total medals. Four years ago, the U.S. had 103 overall medals, while China came in second with 88. In Rio, the U.S. has 1/2 odds to surpass 103 combined gold, silver and bronze medals.

The U.S. is such a heavy favorite in certain sports that it would be a monumental upset for the nation not to win gold. The men’s basketball team is a 1/16 favorite to win the gold medal, and Team USA has failed to finish in first just once since NBA players began playing at the Olympics in 1992 as part of the Dream Team. The women’s basketball team is expected to be nearly as dominant with 1/14 odds.

Michael Phelps is expected to bring home multiple gold medals, as he’s done in each of the last three Games. The most decorated Olympian in history is favored to win the 100-meter butterfly and the 200-meter individual medley, though he is a slight underdog in the 200-meter butterfly.

While China could make things interesting for the U.S. when it comes to gold medals, no other country is expected to come close. Great Britain has the third best odds at 50/1, while three other nations—Australia, Germany and Russia—all have 66/1 odds. In 2012, Great Britain finished in third place as the host nation, racking up 29 gold medals.

The 2016 host nation, Brazil, only totaled three gold medals in 2012.

Below is a look at some of the betting odds for the 2016 Rio Olympics, via Bovada.lv. Click here for the complete list of odds.

Olympics Medal Odds

Olympics 2016 - 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

USA - Total Gold Medals

Over     42.5      -140  (5/7)

Under   42.5      +110  (11/10)

USA - Total Medals

Over     103.5    -200  (1/2)

Under   103.5    +155  (31/20)

Canada - Total Gold Medals

Over     2.5        -140  (5/7)

Under   2.5        +110  (11/10)

Canada - Total Medals

Over     17.5      -125  (4/5)

Under   17.5      EVEN (1/1)

Basketball Odds

Olympics Basketball Men - 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

Olympics Basketball Women - 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

Track and Field Odds

Olympics 100m Men - 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

Olympics 2016 100m Women - 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

Olympics 200m Men - 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

Olympics 2016 200m Women - 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

Olympics Athletics 4x100m Relay Men - 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

Olympics 2016 4x100m Relay Women - 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

Olympics 2016 Decathlon Men - 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

Swimming Odds

Olympics 2016 100m Butterfly Men - 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

Olympics 2016 200m Individual Medley Men - 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

Olympics 2016 200m Butterfly Men - 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

Beach Volleyball Odds

Olympics 2016 Beach Volleyball Men - 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

Olympics 2016 Beach Volleyball Women - 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