This past Sunday I ran the Kaiser Half-Marathon in San Francisco. It was the 30th anniversary of the race, and my second time running it.
It's one of my favorite races to run. It's a nice sized race (about 5500, plus 5K runners), very well organized, and they mail you your bib and chip - no need to make an extra trip to an expo. It's also the race where last year I shockingly beat my half-marathon PR.