Fifolet 5K

Hosted by the 10/31 Consortium, this 5K can be walked, ran, rollerbladed, or broomsticked anywhere at any time during the last two weeks of October. Only one catch: You've got to wear a costume. Imagine the surprise and serendipity you'll bring your neighborhood or park, zooming through dressed as Superman or crawling as Fido or racing along as a dead bride. All participants will receive a t-shirt, finisher medal, and will be eligible for other awards. $31 for 5K; $25 for 1 Mile Fun Run. Rules and registration at 1031consortium.com/5K.