Types of exercise for my dog?

She is almost 2 years old, and very high energy. I play fetch with her at least once a day but she wont play for more then 10minutes each time. She just takes the ball and runs away and starts eating it so i have to take it away. I walk her too, and I used to go for runs with her every night but im really busy now and dont wanna be all sweaty at night and its too hot to do it during the day now[ i get up late at like 10-11] . Any ideas of other activities to do to tire her out? Any answers appreciated!