Key Concepts for Peak Performance
Whether you are preparing for your first marathon or a veteran who just wants a refresher, this is the place to start. Below you will find essential information on hydration, calories, electrolytes, and much more. Under Hammer Guides, you can download FREE PDFs of our most popular publications. Read, use, succeed! After this, you're ready to move on to Advanced Knowledge.
If you're cramping, fading, or bonking and not sure why, read this! Hammer can help you avoid the most common mistakes.