SWOLF is one of the most useful yet overlooked metrics in swimming. Short for “Swim Golf,” it combines your lap time and stroke count into a single number to track efficiency, not just speed. In this guide, Coach Dan Daly breaks down the SWOLF meaning, shows how to calculate your score, and explains what a good SWOLF looks like for different pool types and skill levels. You'll also get expert drill recommendations - including catch-up, fingertip drag, and sculling—to help you swim smarter. If you're ready to stop guessing and start training with purpose, this article is your blueprint.