For me, I'd rather not have all races count, as it would take the friendly vibe away a bit. Well it wouldn't really. It would still be friendly and fun, but I always get a bit more edgy if the results actually 'matter' for any reason. I would rather just have a tonne of races where winning or losing didn't matter, so that I can chill out between the (already intense) races. It's more about all being online at the same time anyway I think. Not to mention the shear amount of effort it would take to record the results, even if result input is simple. If there are special events at certain times that are included in ELO rankings, then that could be cool. I think that would be the best way anyway, otherwise people would be jumping in and out between races (some who are on the YAWL site and some who aren't), and I think it would get too messy.