A heat sheet is a meet program and outlines the events of a swim meet. It includes the order of events, the swimmers participating in each event, their lane assignments and their seed time (best time in that stroke). 

1. Event Number: A short description of the event number, sex, age, distance, and stroke.
2. Heat Number: This indicates the order of the races within an event. Swimmers in the same event but different heats will swim at different times. There may also be an estimated start time for the race and is only an estimate.
3. Lane Number: This tells you which lane the swimmer will be in for their race. Typically, the center lanes are the fastest times.
4. Seed Time: This is the swimmer’s best time in the event, it’s used to organize the heats. "NT" indicates that the swimmer does not have a seed time for that event.
5. Next Heat: There may be several heats per event. Swimmers with the fastest seed times usually swim in the later heats. 

Medley Relay

Freestyle Relays are similar except all strokes are Freestyle.