That's because in addition to all the other activities at the "last fling"... man's best friend will be competing in the "2010 Ashley Whippet Invitational World Championships."
Alex Stein was the man who started it all by introducing his dog "Ashley" to Frisbees and now nearly 40 years later there's a huge following.
Alex stein appeared on ABC7 News Sunday Morning live from Naperville's "Last Fling".
You can see the all of the action at the "2010 Ashley Whippet Invitational World Championships". The dogs will be in action on Sunday until 5:30 pm in Naperville at the River Walk Grand Pavilion.