What is the hardest sport in the world?

There's no single definitive answer to the question of "the hardest sport in the world." The difficulty of a sport is subjective and depends on several factors, including:

• Physical demands: Some sports require extreme endurance (ultra-marathons), explosive power (weightlifting), incredible strength (strongman competitions), or a combination of many physical attributes.
• Technical skill: Mastering the technical aspects of sports like gymnastics, figure skating, or professional darts requires years of dedicated training and an exceptional level of precision.
• Mental fortitude: Sports like boxing, climbing, and long-distance running require immense mental toughness, resilience, and the ability to push through pain and exhaustion.
• Risk of injury: Sports like boxing, MMA, and downhill skiing have a high risk of severe injury.

That said, several sports frequently cited as contenders for the title of "hardest" include:

• Boxing: The brutal nature of boxing, with its constant risk of concussions and other injuries, coupled with the intense physical and mental demands, puts it high on many lists.
• Cross-country Skiing: The combination of extreme endurance, technical skill, and exposure to harsh weather conditions makes this a grueling sport.
• Ultra-marathons: Running distances far exceeding a marathon demands incredible mental and physical strength, resilience, and an ability to cope with extreme fatigue.
• Gymnastics: Requires incredible strength, flexibility, balance, coordination, and precision, all while performing high-risk maneuvers.
• Cycling (Tour de France): The sheer length and intensity of the Tour de France, combined with the physical demands and relentless pressure, make it a uniquely challenging feat of athleticism.

Ultimately, the "hardest" sport is a matter of opinion and depends on the individual's strengths and weaknesses. What one person finds incredibly difficult, another might find relatively easy. The sports listed above represent a spectrum of demanding physical and mental challenges that push athletes to their absolute limits.