Sea Dogs Swim Glossary

Like any sport or activity, swimming has its own lexicon, some of which can be confusing. We've compiled a swim glossary with a list of terms that often trip up newcomers and translated them into plain English!

A–Z Terms

Term Definition
Age-Group Swimming Youth swimming competitions divided into age brackets: 6 & under, 7–8, 9–10, 11–12, 13–14, 15–16, 17–18.
Blocks Platforms swimmers start races from.
Deck The poolside area for swimmers, coaches, and officials only — no parents unless volunteering.
DQ Disqualify. Starter or Stroke and Turn judge may DQ a swimmer for illegal strokes, starts, turns, or finishes. A DQ means the swim does not count for points, “pops,” records, or qualifying times.
Dual Meet Any meet in which only two teams are participating.
Heat A single race by stroke, age group, and sex. For example, the first six girls in the 7/8 freestyle are “Heat 1,” the next six are “Heat 2.”
Heat Sheet The program that shows all participating swimmers, events, heat numbers, and lane assignments. The announcer will also call event and heat numbers, and results are displayed on the electronic board.
IM Individual Medley. One lap (25 yards) of each stroke in order: Butterfly, Backstroke, Breaststroke, and Freestyle, totaling 100 yards.
Recorder A person in each lane records times for each race.
Scratch Withdrawing from an event at a meet, often used strategically at larger meets.
Seed Time The entry time for a swimmer used to assign heats and lanes. Faster seed times are placed in earlier heats and center lanes.
Starter The USA Swimming official responsible for starting each heat and calling the next to the blocks.
Streamline A long, straight body position used during starts and turns to reduce drag underwater.
Stroke & Turn Officials ensure swimmers perform strokes, turns, and finishes correctly. Volunteers must complete annual training.
Time Trials Our first meet of the season, held internally to establish base times. Scores aren’t kept.
Timer Three people at the finish end of each lane time every race — half from the host team, half from the visiting team.

Stroke Abbreviations

Abbreviation Stroke
BK Backstroke
BR Breaststroke
FLY / FL Butterfly
FR Freestyle
IM Individual Medley
Heat sheet example Meet info handout Additional meet reference