My dog is fine with me very loving and listens well.. When I take him to the park and let him off the leash and run around with him is the only time he gets out of hand..

I like to run around with him but he'll run up in front of me and try to bite me...He thinks he just playing but sometime he gets me good...Its no problem taking control of the situation and tell him no...He'l instantly stop and sit down when he knows hes done somethong wrong. I dont want it to get this far I just want to be able to run around with me with out fearing he's gonna bite at me even if he only thinks he's playing.

This action never happens at home or when I walk him...Just when I let him off the leash and start to run with him..

Okay, he thinks that is the way you want to play. How old is he? That could make a big difference in how you want to stop this from happening.

he is between 2 1/2 and 3 years old...We have have had him aproximately 1 1/2 years... When we first got him from the pound he was a totaly shy and introverted dog now he loves to play and be pet.. He knows to stop playing if we tell him stop....