Keywords: Back side of disposable RFID tag used for race timing.png Photo taken by uploader of disposable RFID tag used to time runners at the 2009 Miami Marathon and Half-Marathon en wikipedia Liftarn CommonsHelper 2009-08-11 Tomkarlo wikipedia en Tomkarlo Original upload log page en wikipedia Back_side_of_disposable_RFID_tag_used_for_race_timing png 2009-08-11 23 48 Tomkarlo 256×171× 81503 bytes <nowiki>Photo taken by uploader of disposable RFID tag used to time runners at the 2009 Miami Marathon and Half-Marathon </nowiki> RFID Timekeeping |