Well...I suppose you've done enough running and swimming so if you were going to have problems, you would? Anyway I use it for:

Wetsuit chafing on the back of my neck
On my ankles to slide my wetsuit on and off easier (but I've seen some use Pam)
On my feet if I'm starting to get rubbing or that blister feeling
On my workout top/bra if there's rubby spots
On my legs where they rub if I'm wearing shorts and it is getting irritated

It's good stuff. I was just out on a run and started getting a raw spot on my inner upper arm. I had no bodyglide with me so I used lip balm instead. It got me by but bodyglide would've been better