There's a reason to run a preview of a race like the Wasatch Back several weeks before it's going to be take place: If you don't, it might be too late for anyone to join in.

Updating this week's City Weekly feature, organizers have announced that there are no more registration spots available for the 2009 Ragnar Relay Wasatch Back, scheduled for June 19-20. If you're keeping track, that's 650 teams and more than 7,000 runners for the 187-mile event. Not too shabby for a race that featured just 22 teams five years ago.