I was trying to look it up and it appears that "an athlete's sports drink should have less than a 7 percent carbohydrate solution (sweetner). Alternatively, he recommends it be diluted with equal parts water. Gatorade contains a 6 percent carbohydrate solution."

It looks like Gatorade does not need to be diluted. Other sports drinks may need the dilution so I guess you just need to find the facts for each separately.