Bowling is one of the fastest growing sports in Special Olympics. 
Lots of athletes probably choose bowling because it is a sport that a lot of people enjoy for fun as well as competition. 
There are  changes made for athletes with  disabilities but some athletes 
play under the same rules as professional athletes. 
Like always, bowling teams are grouped in divisions according to the athletes' ability 
level, age, and gender. 
Events: 

Singles Competition - (1 person) 
Doubles Competition - (2 people) 
Team Competition - (4 people) 
Unified Sports® Doubles Competition - (2 people) 
Unified Sports® Team Competition - (4 people)

Events: 

Singles Competition - (1 person) 
Doubles Competition - (2 people) 
Team Competition - (4 people) 
Unified Sports® Doubles Competition - (2 people) 
Unified Sports® Team Competition - (4 people)