Interestingly I have one hit for my gmail on isleaked.

Looking at that link I see freebiejeebies, which if I check in keepass I created an account for in 2008 with a unique password (as I tended to back then, even for throwaways).

Sure enough the first two characters match that reported by isleaked (Though case doesn't match..)

Having gone through the majority of the other entries in keepass, that is the only password starting with the two reported characters.

So can safely say freebiejeebies was compromised at some point.

Now to work out why I'd have an account on there in the first place ;)