Complex sentence: A total of 111 athletes, 66 men and 45 women, had competed in 13 sports at these Games; most of them were strong medal contenders in athletics, boxing, judo, and wrestling.
Split into simpler sentences: A total of 111 athletes, 66 men and 45 women, competed in 13 sports at these Games. Most of them were strong medal contenders in athletics, boxing, judo, and wrestling.