The Top 5 Hardest Sports based on physical demands often include boxing, MMA, ice hockey, gymnastics, and wrestling. To play these sports, an athlete needs to be as physically strong as possible, be able to be fast, agile, and have a sharp mind. It is a routine of endurance training, hours of practice, and high-impact performances. These, however, are different in that they put such an enormous amount of strain on every part of the body and the mind. When looking at What Is The Hardest Sport, these five are always near the top for their intensity and difficulty. Then again, they’re not just games; they’re tests of the extreme limits of athleticism and determination.