Makuuchi is the highest division in professional sumo wrestling, featuring the top-ranked wrestlers. It consists of 42 rikishi (wrestlers) who compete in a round-robin format during each tournament, known as a basho. The wrestlers are ranked based on their performance, with the top rank being Yokozuna. In Makuuchi, wrestlers face off in matches held in a circular ring called a dohyo. The division is known for its intense competition and showcases the best talent in sumo. Wrestlers aim to achieve a winning record to maintain or improve their rank, which can lead to promotions or demotions in the sport.