 These slots are randomly selected from remaining applications post-marked by March 31.Atlanta Track Club experimented in November 2008 at The Weather Channel Atlanta Marathon and Half Marathon with implementation of the ChronoTrack D-Tag transponder system, a disposable tag system.Following its success, the organization announced that starting with the 2009 Peachtree, all runners—not just the elite and timegroup 1 runners—will be timed.