Today, despite the staged aspects of wrestling, it is still seen as a legitimate sport in several countries, such as Canada, Japan, Mexico, and the United Kingdom, while it is seen as a form of entertainment in the United States similar to that of the Harlem Globetrotters. Due to the lingering legitimacy issues that surrounded wrestling from the 1910s until the 1980s, gambling was generally not allowed on wrestling matches while it was still considered a legitimate sport. Despite wrestling having openly acknowledged that the results are predetermined for years, since the late 2000s gambling has increased on wrestling events, though the maximum bets are kept low due to the matches being predetermined. Due to the predetermined nature of professional wrestling, bets are usually taken based on how people expect the event to be booked, as opposed to who the person betting believes is the superior fighter.