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