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Hammer Nutrition

Race Day Boost - Increase Athletic Performance

Race Day Boost - Increase Athletic Performance

Regular price $27.95 USD
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Race Day Boost greatly enhances the performance of your body’s three energy production pathways. That means, no matter what your race pace may be—low-to-moderate intensity, higher intensity/ anaerobic, or flat-out sprint—a four-day load with Race Day Boost delivers the goods to help you meet or exceed your race day expectations. Race Day Boost superbly buffers lactic acid and dramatically improves oxygen utilization, which is why it’s no surprise that, in the most extensive research to date on Race Day Boost’s primary ingredient, study subjects enjoyed a whopping 8% improvement in performance time. Transform your race day experience with Race Day Boost! Boost your body's energy production pathways and watch your performance soar. Whether you're pushing through a low-intensity race or sprinting to the finish line, our scientifically-proven formula will help you exceed your expectations. Say goodbye to lactic acid buildup and hello to improved oxygen utilization. And with Race Day Boost's primary ingredient showing an 8% increase in performance time, you'll see the results for yourself!


Yes, sodium tribasic phosphate (also referred to simply as sodium phosphate) is remarkably safe, especially in the relatively small amounts found in Race Day Boost and Perpetuem. Sodium phosphate enjoys FDA "GRAS" (Generally Recognized As Safe) status as an emulsifying agent, Nutrients and Dietary Supplement, a sequestrant (a food additive whose role is to improve the quality and stability of the food products), and for miscellaneous use.

The LD50 of orally dosed sodium tribasic phosphate for rats (the amount of an agent that is sufficient to kill 50 percent of the rats) is 7,400 mg/kg. Translated for a 75 kg/165 lb. athlete, that would mean a dose of nearly 555 grams (555,000 mg), an astronomically high amount that no one would even conceive of trying to take. By comparison:

  • The LD50 of sodium bicarbonate (baking soda) for rats is 4,220 mg/kg
  • The LD50 for rats consuming acetic acid (vinegar is a dilute aqueous solution of acetic acid) is 3,310 mg/kg
  • The LD50 of sodium chloride (table salt) for rats is 3,000 mg/kg

Use for major events.

One-Day Event—"A" Race
Take 4 capsules with food and water 4 times per day (16 capsules daily) for 4 days before a competition.

Multi-Day Event
Follow loading protocol for 3 days prior to start:

4 capsules, 4 times per day.

Then follow this twice-daily “maintenance dose” protocol after each stage:

Take 4 capsules with Recoverite® as soon as possible after racing each day, as well as another 4-capsule dose with food later in the day/evening.


Do not use it for every race because this product has a “tolerance factor.” Therefore, use it ideally only four to six times per year.

Race Day Boost Capsules
Supplement Facts

Serving Size 4 capsules
Servings Per Container 16 Amount Per Serving% Daily Value*Sodium (from Trisodium Phosphate)440mg19%Phosphorus (from Trisodium Phosphate)189mg15%* The Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
† Daily Value not established.Other Ingredients: Malic Acid, Vegetable Capsule (plant cellulose and water), Rice Hulls (Oryza sativa), and Rice Flour (Oryza sativa).

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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