The current rule for the end of a run is when "the win animation begins", which is reasonably but can be slightly tricky to get right with some of the animations (eg. wave effect in Sigmar, or the fade effect in Proletariat I think).

A more straightforward rule could be "The timer ends when the win counter increases". It's easy to check frame-by-frame for everyone, and works with all solitaires. The change wouldn't affect the times by more than a few tenths, which I think is okay at the current state of the leaderboards.

Agreed, I think counting when the win count changes makes more sense. It would make counting wins a bit more consistent. The current record times are pretty far apart so this shouldn't be an issue for now though haha

Agreed. Will change that now.