3 p.m. Pool closes and set-up begins
4:45-5 p.m. Swimmers & volunteers arrive and check-in
5 p.m. Home team warms up
5:20 p.m. Visiting team warms up
5:45 p.m. Timer and officials meeting
6 p.m. Meet begins
7:30-8 p.m. Second half of meet/second volunteer shift begins
9:30-10 p.m. Meet ends

A heat sheet (SEE IMAGE ABOVE) is the program for a swim meet, and it lists all the events, with the swimmers in each race (or event) and what heat and lane those swimmers will be in. Lanes in the pool are divided by the lane lines. An event will have "heats" when there are more swimmers than lanes available. Traditionally, swimmers with the fastest seed times are in the last heat.

In the Gwinnett County Swim League there are 82 events at each meet, and each meet is run with the same schedule of events:

SCHEDULE OF EVENTS
#1-12 Backstroke
#13-22 Medley Relay (Backstroke, Breaststroke, Butterfly, Freestyle)
#23-34 Short Freestyle
#35-36 8 & U Freestyle Relay
#37-44 Individual Medley/IM (Butterfly, Backstroke, Breaststroke, Freestyle)
#45-54 Long Freestyle
#55-64 Breaststroke
#65-74 Butterfly
#75-82 Freestyle Relay

EVENTS BY AGE

Seed time is the fastest time a swimmer or team of swimmers has swum an event prior to the submission of entries for the meet. For individuals, this is the time entered for the swimmer for the event and is a good goal to try to beat. It also factors into lane placement and heat number. Swimmers with no seed time will usually be in the first heat. The heats are usually placed with the faster seed times at the end.

An “NT” listed for seed time means no seed time has yet been recorded for that swimmer, i.e. that swimmer has not competed in that event, or was disqualified during the event.

An X in front of seed time means the swimmer is swimming an exhibition heat. In exhibition heats, swimmers receive a time, but do not score points for the team. Exhibition heats are performed so that more swimmers can participate in events, and are a valuable opportunity to get a legal time for championship eligibility, or achieve one’s personal best.

Individual Medleys (IM) are swum in order:
1) Butterfly, 2) Backstroke, 3) Breaststroke, 4) Freestyle.
It’s important for swimmers to know the order, because any other order will result in a “DQ” or disqualification.

Medley Relays are swum in order:
1) Backstroke, 2) Breaststroke, 3) Butterfly, 4) Freestyle.
When reading a heat sheet, you can tell which swimmer is swimming which stroke by the order they are placed in the event.

Placement in heats and lanes is done by the computer. 
The computer places everyone in a particular event by age groups and will start with the fastest 5 swimmers (if the pool has 5 lanes). The fastest three (based on seed times)) go in the middle lanes the next fastest go in lane 1 and lane 5.

If there are 5 or more swimmers for this event, the computer will take the next 5 fastest swimmers and place them the fastest in the middle two lanes in the next heat and so and so on. Then the computer puts all the NT swimmers in the first heat or race in a random order.