Not the OP but I used to do that - problem is phones are becoming so damn large even the elasticated belt doesnt work that great anymore. Too much bounce.

I found a "belt" thats much wider and doesnt have a clip (has to be sized just right) that does work better. But a bit of a pain to wear sometimes.

For years I just literally ran with the phone in my hand (got used to switching hands and positions for comfort) so I could still do music and tracking. Not that bad when you get used to it. Eventually got a Garmin watch (cheapest with maps and music) which works great.