I do have an IWB holster. I use it all the time. I was referring to the jogging part. I don’t wear a belt. The holster flops all around in my jogging pants or shorts. I’ve thought of a shoulder rig but haven’t tried one yet.
IMHO, If you are going to be wearing a pistol while running, you need a belt.
I just make sure the shorts I use for running have belt loops. I suggest a sweat resistant belt.