AO (Australian Open) is one of the four major tennis tournaments, which are better known as Grand Slam tournaments. The tournament begins at the end of January each year and takes place first among the four major competitions.
The Australian Open matches take place on hard courts at outdoor stadiums in the Australian city of Melbourne. Men’s singles and doubles matches are held in the format of five sets, women’s – to win in two games.

Experienced players disdain betting on Australian Open matches
Because the tournament takes place at the start of the season and it is not possible to study the actual physical and playing form of tennis players. There are often sensations at the tournament, in addition, players with good physical endurance get advantages in AO matches, because the Australian climate is very hot.