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Product Detail & Benefits


If you found a performance supplement that enhanced the functions and performance of your body's three energy production pathways, and also effectively buffered lactic acid, you'd take it, wouldn't you? Hammer Nutrition's Race Day Boost is that product - and yes, it's safe and legal! In the most extensive study to date on Race Day Boost's primary ingredient, fit cyclists in a 40K time trial netted a whopping 8% improvement in performance time. The simple formula belies its profound effectiveness, aiding in increased cellular energy production and buffering performance-robbing lactic acid.

No matter what duration your event may be, a four-day loading dose of Race Day Boost prior to a key race can make a noticeable difference in your performance. This is a special product for special events, but if you intend to meet or exceed your race day expectations, you better have Race Day Boost in your arsenal.

Nutrition Labels:

Race Day Boost Capsules
Supplement Facts
Serving Size 4 capsules
Servings Per Container 16
Amount Per Serving % Daily Value*
Sodium Phosphate 1000mg
* 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: Sodium (Tribasic) Phosphate, Malic Acid, Vegetable Capsules (plant cellulose and water).

Nutrition & Usage Tips

Race Day Boost

Race Day Boost

You're four days away from a personal best!

Race PR Kit - AES vol 8.14

Race PR Kit - AES vol 8.14

The ultimate performance-enhancing trio for race days!

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Product Reviews

Rated 5 out of 5 by from Boost Your Performance Race Day Boost works exactly as it claims. I have used this product to excellent success coming off of high volume training for a race. Used as directed, this product has helped me feel rested and energetic on race day.
Date published: 2015-07-20
Rated 4 out of 5 by from great pre race supplement I have used this product consistently for triathlons, trail and road half marathons, various cycling events (mountain and road) and have found it to be extremely helpful. I know I performed better with this product and felt strong at the finish, hit PRs and got back to training right after racing with no problems. I gave this product 4 stars on because if I do the full course as described (up to 8 capsules a day for 4 days) I get a mild headache for the last two days or so. If I half the dose (so 4 capsules a day for 4 days) I feel that I still get the same benefit but without the headache. I believe this product has helped me race that much better that I'm wiling to tolerate a mild headache. I have never experienced nausea or vomited, just a mild headache. In combination with other Hammer fuels and supplements I have great results with this product.
Date published: 2015-04-03
Rated 5 out of 5 by from More Unicorn magic in a pill! I've been taking this supplement consistently for a month now during my marathon training and I really do see a difference in my energy levels and reduced soreness. In fact, I haven't had any soreness for this marathon training while taking this product! I can't wait to officially complete my first marathon and that's saying a lot for someone who has Lupus! If you don't have this as a staple to your training regime, well, you're working harder, not smarter.
Date published: 2015-03-19
Rated 5 out of 5 by from Really seemed to help I have used this product multiple times and actually did PR on all of the races. It seems to help more for short races but helps with hydration on the longer ones as well. My stomach doesn't deal well with the caps but does with the powder (although truthfully the taste is not great). But it's easy enough to drink up for the results.
Date published: 2014-12-01
Rated 3 out of 5 by from Nausea? I tried these for the first time before my A race triathlon. I had a great race but I'm not sure it had to do with these pills. I've only used them once so I'm undecided but while taking them I had a lot of unexplained nausea even vomited once. I'll try them again with reservation.
Date published: 2014-09-07
Rated 5 out of 5 by from Boost is an accurate description Felt focused and race ready. Helped through build up and race day.
Date published: 2014-08-31
Rated 5 out of 5 by from My go-to pre-race supplement I first starting using RDB in 2012 and while this product is geared more for shorter duration and high intensity racing, I found it works for well for me over the 70.3 triathlon distance and everything shorter. The greatest benefit I've found using RDB has been racing Olympic and Sprint triathlons. When preloaded with RDB I feel great following a race and more importantly am able to get right back into my training routine the next day.
Date published: 2014-08-18
Rated 5 out of 5 by from really works for me. love this product I use it for motocross Im 43 years old been racing for 29 years
Date published: 2014-08-16
  • 2015-08-02T06:47CST
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