The Summer Olympics are too large. I would split them into Outdoor (truly summer) and Indoor (autumn?), held in different countries.
Outdoor Olympics: athletics, triathlon, road cycling, mountain biking, BMX, open waters swimming, kayaking, rowing, sailing, football, rugby, tennis, golf, field lacrosse, field hockey, beach volley, beach soccer, equestrian, archery, surfing, water skiing, wakeboarding, skateboarding, climbing.
Indoor Olympics: indoor athletics, track cycling, gymnastics, pool swimming, diving, futsal, basketball, indoor volleyball, indoor hockey, indoor lacrosse, indoor tennis, ping pong, squash, weightlifting, boxing, karate, judo, taekwondo, ju-jitsu, fencing, wrestling, billiards, bowling.