Prediction Markets
Sports odds
As of August 2026, these are the most active sports prediction markets — championships, finals, and head-to-head outcomes — priced live across Polymarket and Kalshi. Each YES price is the market-implied probability the event resolves true.
Polymarket$3.4M
Arizona Diamondbacks vs. San Francisco Giants
3%YES▼50
resolves 4dTrade on Polymarket ↗
Polymarket$2.1M
Monterrey Open: Ekaterina Alexandrova vs Clara Tauson
1%YES▼48
resolves 2dTrade on Polymarket ↗
Polymarket$1.4M
Monterrey Open: Nikola Bartunkova vs Elise Mertens
3%YES▬
resolves 5dTrade on Polymarket ↗
Polymarket$1.3M
US Open, Qualification ATP: Vilius Gaubas vs Harry Wendelken
1%YES▼78
resolves 3dTrade on Polymarket ↗
Polymarket$1.3M
Winston-Salem Open: Juan Manuel Cerundolo vs Ignacio Buse
0%YES▼56
resolves 4dTrade on Polymarket ↗
Polymarket$1.2M
Winston-Salem Open: Arthur Fery vs Ignacio Buse
2%YES▬
resolves 6dTrade on Polymarket ↗
Polymarket$1.2M
US Open ATP: Mariano Navone vs Novak Djokovic
100%YES▲81
resolves 6dTrade on Polymarket ↗
Polymarket$439k
Monterrey Open: Cristina Bucsa vs Darja Vidmanova
8%YES▬
resolves 3dTrade on Polymarket ↗
Polymarket$702k
Winston-Salem Open: Raphael Collignon vs Rinky Hijikata
1%YES▼53
resolves 1dTrade on Polymarket ↗
Polymarket$989k
US Open, Qualification ATP: Titouan Droguet vs Daniel Rincon
1%YES▬
resolves todayTrade on Polymarket ↗
Polymarket$380k
Augsburg: Benjamin Hassan vs Juan Manuel La Serna
0%YES▬
resolves 1dTrade on Polymarket ↗
Polymarket$903k
Winston-Salem Open: Mattia Bellucci vs Luciano Darderi
0%YES▼50
resolves 1dTrade on Polymarket ↗
Polymarket$478k
US Open, Qualification WTA: Moyuka Uchijima vs Lucie Havlickova
1%YES▬
resolves 3dTrade on Polymarket ↗
Polymarket$869k
US Open, Qualification ATP: Pedro Martinez vs Daniil Glinka
2%YES▼56
resolves 1dTrade on Polymarket ↗
Polymarket$423k
Augsburg: Benito Sanchez Martinez vs Facundo Mena
1%YES▬
resolves 4dTrade on Polymarket ↗
Polymarket$813k
US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori
0%YES▼51
resolves 1dTrade on Polymarket ↗
Polymarket$807k
US Open ATP: Thiago Agustin Tirante vs Adrian Mannarino
9%YES▼62
resolves 6dTrade on Polymarket ↗
Polymarket$806k
Winston-Salem Open: James Duckworth vs Arthur Fery
0%YES▼45
resolves 5dTrade on Polymarket ↗
Polymarket$149k
US Open, Qualification WTA: Jodie Burrage vs Guiomar Maristany
3%YES▼70
resolves 1dTrade on Polymarket ↗
Polymarket$282k
US Open, Qualification WTA: Dalma Galfi vs Aliaksandra Sasnovich
12%YES▼37
resolves 1dTrade on Polymarket ↗
Polymarket$258k
Winston-Salem Open: Jan Choinski vs Mees Rottgering
1%YES▼52
resolves 1dTrade on Polymarket ↗
Polymarket$366k
Kingston 2: Rodrigo Pacheco vs Andres Andrade
0%YES▼61
resolves 5dTrade on Polymarket ↗
Polymarket$151k
Philadelphia: Oksana Selekhmeteva vs Katie Volynets
1%YES▬
resolves 5dTrade on Polymarket ↗
Polymarket$352k
Winston-Salem Open: Martin Damm vs Fabian Marozsan
4%YES▬
resolves 3dTrade on Polymarket ↗
Polymarket$416k
US Open, Qualification WTA: Laura Samson vs Tamara Zidansek
1%YES▼58
resolves 1dTrade on Polymarket ↗
Polymarket$174k
Philadelphia: Talia Gibson vs Lizette Cabrera
22%YES▼88
resolves todayTrade on Polymarket ↗
Polymarket$708k
US Open, Qualification ATP: Yunchaokete Bu vs Federico Cina
3%YES▼63
resolves 4dTrade on Polymarket ↗
Polymarket$507k
US Open, Qualification WTA: Rebeka Masarova vs Iryna Shymanovich
1%YES▬
resolves todayTrade on Polymarket ↗
Polymarket$221k
Winston-Salem Open: Luca Van Assche vs Aleksandar Kovacevic
1%YES▬
resolves 2dTrade on Polymarket ↗
Polymarket$263k
US Open, Qualification ATP: Diego Dedura-Palomero vs Frederico Ferreira Silva
1%YES▬
resolves todayTrade on Polymarket ↗