The first art cave paintings attributed to sports were discovered in a cave in France 15,300 years ago (for reference the earliest known cave paintings of any kind go back at least 64,000 years earlier!). These paintings were actually military wall paintings.These soldiers became the best athletes; their early training involved striking, fighting, wrestling, boxing, javelin, and discus throwing. So, we could say the first military wall paintings were also the first sports paintings.
Sports began when nomadic hunter-gathers discovered a need for natural expansion as their populations began to grow. This population growth caused these individuals to settle down. This new way of life became highly prevalent. This settling down brought about the need for protection as the communities escalated. As tensions rose, militaries started to form.
The practical skills used in the military are the exact same muscles and ability used in sports, so the ancient militaries preparing to go to war used what is now identified as team spirit and organized competition to motivate one another.
All of these inspired different sports, like running in different conditions, jumping, catching and throwing, boxing, wrestling, and sword-fighting. Later, in the 8th century BC, the Greek Empire staged the first competive Games in the city of Olympia in 776 BC. These Games lasted until 393 AD. It took another 1503 years for the first official world Olympic Games which were held in Athens, Greece in 1896. However, no women competed until 1921 in what was called the Women Olympiad held in Monte Carlo.
Art is defined as the expression or application of human creative skill and imagination, producing work to be appreciated primarily for their beauty or emotional. Baseball, for example, is the a sport that involves skills, creativity, and imagination, and it produces work (in the form of matches) that are greatly appreciated for their competitive nature and teamwork spirit, therefore it is a form of art. Thus, each sport is a form of art.