Short course galas/competitions are held in a 25m pool (like Bradford Grammar, Aireborough and Shipley). Long course events are held in a 50m pool and these events will be either graded or Open meets. Most open competitions will required entry times to be submitted.
Short course times will always be faster than long course times because a swimmer will complete more turns and can take advantage of the push off the wall. Where you require a conversion time between long and short course times, please see your coach.