Austinites for Bostonites is a 24-hour track event to show support for Boston and raise money for the Boston-area Red Cross. Participants sign up for a specific time to run or walk laps between 6 p.m. Saturday, April 27 and 6 p.m. Sunday, April 28. Drop-ins also welcome. The aim is to have at least one person on the track at all times. Comments invited on the Facebook events page listed below.