Electronic Timing Electronic Timing will be used to record all competitors race time. Race Packs will include a Transponder and Ankle Band which competitors must wear on their ankle ( see photos below ) during the event, and will be removed by officials after crossing the Finish Line. Full instructions will be included in your Race Pack. Transponders still in your possession after the event must be returned by post to Cadbury Dunedin Marathon PO Box 5378, Moray Place, Dunedin 9058, or , handed in at The Frontrunner Wall Street Mall George Street Dunedin. Failure to do so will incur a $50 fee.