By Julie J. -
SWOLF is derived from combining the terms swimming and golf. SWOLF data is generated by adding the time and the number of strokes it takes to swim a pool length. For instance, 30 seconds and 10 strokes to swim the length of a pool will equal a SWOLF score of 40. A lower score is better, just as in golf. Several of the devices supported by Swim.com measure SWOLF.