Freestyle (“free”) – Freestyle (nicknamed Free) is swum as the fourth stroke in the Medley Relay and fourth stroke in the I.M. Racing distances are 50 yards/meter, 100 yards/meter, 200 yards/meter, 400 meter/500, yd 800 mtr/1000 yds, 1500 mtr/1650 yds (LSCs with 8under divisions offer the 25 yd free).