Corrected entry: Timmy and Jimmy would not have competed in the same heats in the Special Olympics because they have different disabilities. Timmy would have competed in the wheelchair division, while Jimmy would have competed in the Down Syndrome division.
Corrected entry: You can't leave 'disability' blank. It's the most important question that has to be filled out, as it determines the participants division.
Correction: Congratulations: you've discovered the entire point of that joke.
Correction: Jimmy has Cerebral Palsy, not Downs Syndrome.