{TAIL ~ A timing system} for a swimming race 1, wherein said control device includes a counting circuit for counting {HEAD ~ a number} of swimmers waiting for their turns in relay after getting a first signal from said starting block signal generator generated by diving of a swimmer 
{ TAIL ~ A timing system } for a swimming race 1 , wherein said control device includes a counting circuit for counting { HEAD ~ a number } of swimmers waiting for their turns in relay after getting a first signal from said starting block signal generator generated by diving of a swimmer
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH