Experts agree that some sports are more demanding than others due to physical and mental challenges. At the top of the list is boxing, which requires peak physical condition, mental toughness and the ability to take and deliver punches for long periods of time.
The intensity of training and competition makes it one of the hardest sports to master. Ice hockey is also highly rated for its combination of speed, power and skill.
Athletes must have the stamina to skate for long periods of time while handling the puck, avoiding opponents and making split-second decisions. The fast-paced nature of the game combined with physical collisions make it one of the most demanding sports at the elite level.
Tennis is another sport that experts consider challenging due to its demands for high levels of endurance, mental focus and technical precision.
Matches can last for hours and push players to their physical and mental limits. The constant back and forth play and strategic thinking that tennis requires is what sets it apart from many other sports.