I once played xmoto using the 0.1.10 ubuntu-package,
when the following happened.
After finisching the level the time in the highscore
list differed by 0.01 seconds to the one at the top of
the screen. Look at the screenshot if you don't
understand what I mean.
I'm not sure if this is fixed, now. I haven't had a
look at the source, but I'm sure you can see the
problem by examining the source.
Sorry, I can't reproduce this. That's why I can't test
if this bug still exists.
PS: Don't laugh about this bug report and don't be
offended, because those 0.01 seconds don't really
matter. Mark it as wontfix, if you want to.