Head to head
GU Energy Roctane Energy Drink Mix vs Tailwind Nutrition Endurance Fuel Drink Mix
Both verified against their manufacturer source and scored on the same fueling evidence. Highlighted cells are the stronger number for racing.
| GU Energy Roctane Energy Drink Mix | Tailwind Nutrition Endurance Fuel Drink Mix | |
|---|---|---|
| RC Science Score | 92 /100 | 69 /100 |
| Carbohydrate | 60 g | 25 g |
| Sodium | 320 mg | 303 mg |
| Caffeine | 0 mg | 0 mg |
| Protein | 0 g | 0 g |
| Glucose:fructose | — | — |
| Cost per serving | $2.25 | $1.03 |
Build the hour
What an hour on each looks like — and the two together
Specs tell you what is in a serving. This tells you how many servings an hour hit your target, what that delivers, what the race costs, and what you would carry. Set your own target from the finder and it follows you here.
Servings per hour to hit the target, what that delivers, and what you would carry.
GU Energy Roctane Energy Drink Mix
1 × Roctane Energy Drink Mix / hr
60 gcarbs / hr
320 mgsodium / hr
—caffeine / hr
$9.20for the race
🎒 4 servings of mix of GU Energy Roctane Energy Drink Mix
Tailwind Nutrition Endurance Fuel Drink Mix
2.4 × Endurance Fuel Drink Mix / hr
60 gcarbs / hr
727 mgsodium / hr
—caffeine / hr
$10.00for the race
🎒 10 servings of mix of Tailwind Nutrition Endurance Fuel Drink Mix
2.4 servings of Endurance Fuel Drink Mix an hour means a strong bottle. Check the concentration in the drink-mix tool before you race on it.
Combo: Roctane Energy Drink Mix + Endurance Fuel Drink Mix (half each)
0.5 × Roctane Energy Drink Mix / hr
1.2 × Endurance Fuel Drink Mix / hr
60 gcarbs / hr
524 mgsodium / hr
—caffeine / hr
$9.60for the race
🎒 2 servings of mix of GU Energy Roctane Energy Drink Mix
🎒 5 servings of mix of Tailwind Nutrition Endurance Fuel Drink Mix
Sodium and caffeine show what these products deliver at that rate. Your caffeine dose comes from the caffeine tool, and the drink-mix tool checks a bottle's concentration.
Turn this into a real race plan
CarbRate builds a course-aware, minute-by-minute fueling plan for your exact race, body, and conditions — then guides you through it live on race day.