First Sprint Tri

The sequence for starting will be determined by the race officials, each race is different.  If the race you're doing has a web site, go there and look through the information listed for participants, there may be info regarding start times.  If that's not helpful, you will get the info when you pick up your race packets.  If you need to know sooner than that and there's no help on the web site, give someone (race official / race director) a call or email asking for the info.  Good luck at the race!