#10: RowingAlso known as crew, rowing is one of the most physically demanding water sports. Athletes push their cardiovascular endurance to the limit, requiring sheer power and incredible rhythm. Competing against other rowers is challenging enough, but racing in boats powered solely by the propulsion generated by the legs, core, and upper back takes it to another level. Whether racing alone in a single scull or with a team in a coxed eight, this ancient Egyptian-originated sport demands peak physical and mental condition. #9: Water PoloSwimming is already a tough sport, but water polo, a more intense form of swimming, is even more challenging. The premise is simple: two teams compete to score the most goals in the opponent's net. The catch? The game is played in approximately 7 feet of water for almost an hour, requiring immense endurance and stamina. To make it more difficult, water polo is a contact sport where players are constantly attacked and manhandled, all with little to no protective gear. #8: SoccerOne of the most popular and beloved sports worldwide, soccer demands players to be in top physical condition. Speed and quickness are crucial in this game, which involves dribbling the ball across a field and scoring in the opponent's net. Soccer is a game of constant motion, with players perpetually moving, sprinting, and fighting to maintain or regain possession of the ball over a field of up to 76,900 square feet, testing their resilience. #7: TriathlonIn a triathlon, athletes must swim, run, and cycle, all while racing against other contestants for hours on end. Participants face muscle fatigue, strength challenges, and complete exhaustion when performing these activities, which require months of training. Beyond the physical demands, athletes compete against the clock, striving for the fastest overall completion time. #6: HockeyBalancing on steel blades millimeters wide, flying down slippery ice at high speeds, stopping, starting, changing directions on a dime, constantly fighting for the puck, and getting slammed by other players is the reality of hockey. Popular in North America and colder parts of Europe, this sport requires stamina, endurance, speed, and agility. It also carries a high risk of injury, with studies showing hockey is responsible for nearly half of all brain injuries among Canadian child athletes. #5: American FootballAmerican football demands players be swift, sturdy, and strong, competing against equally tough opponents. Despite the short, high-intensity plays, dexterity and durability are crucial to endure the hard hits, tackles, and runs required to reach the opponent's end zone with the ball. Being a full-contact sport, the risk of injury, especially concussions, is high, even with protective measures in place. #4: RugbyAlthough rugby may resemble American football to the untrained eye, it has distinct differences that make it even more challenging. Created in Warwickshire, England during the late 1800s, rugby is played for 80 minutes with only a short halftime break, compared to American football's shorter quarters and multiple breaks. Moreover, rugby players wear no protective padding, making it a brutal and demanding sport. #3: BoxingBoxing is so physically demanding that many athletes end up disabled or even dead. This ancient sport, popular in Ancient Greece and Rome, requires combatants to be quick, powerful, and ruthless. Today, professional boxing matches last 10-12 rounds, with athletes inflicting maximum damage to their opponents in a battle that often ends with one being overpowered to the point of unconsciousness. #2: WrestlingUnlike boxers who take frequent breaks, wrestlers spend the entire match in physical contact with their opponents, grappling and exerting all their strength. Recognized as one of the earliest forms of combat, wrestling demands peak physical condition, endurance, and coordination. Wrestlers use holds, throws, pins, and takedowns to subdue their opponents. #1: Mixed Martial Arts (MMA)MMA is the epitome of physical and mental challenge. This full-contact combat sport, popularized in the late 1990s, requires strength, endurance, agility, and raw power, along with unparalleled mental involvement and alertness. From the moment a match begins, athletes must utilize a variety of fighting styles, techniques, and positions to defeat their opponents, who are also trained fighters in peak physical condition. These sports are some of the most physically challenging, requiring athletes to push their bodies and minds to the limit. Also Read: Check out five significant types of swimming styles!