Head to head
GU Energy Energy Chews vs Skratch Labs Sport Energy Chews
Both verified against their manufacturer source and scored on the same fueling evidence. Highlighted cells are the stronger number for racing.
| GU Energy Energy Chews | Skratch Labs Sport Energy Chews | |
|---|---|---|
| RC Science Score | 73 /100 | 91 /100 |
| Carbohydrate | 22 g | 19 g |
| Sodium | 40 mg | 40 mg |
| Caffeine | 0 mg | 0 mg |
| Protein | 0 g | 0 g |
| Glucose:fructose | — | — |
| Cost per serving | $1.25 | $1.38 |
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 Energy Chews
2.7 × Energy Chews / hr
59 gcarbs / hr
108 mgsodium / hr
—caffeine / hr
$13.60for the race
🎒 11 packs of chews of GU Energy Energy Chews
Skratch Labs Sport Energy Chews
3.2 × Sport Energy Chews / hr
61 gcarbs / hr
128 mgsodium / hr
—caffeine / hr
$17.60for the race
🎒 13 packs of chews of Skratch Labs Sport Energy Chews
3.2 packs of chews an hour of Sport Energy Chews is more than most stomachs take. Move part of the carbs to a drink mix.
Combo: Energy Chews + Sport Energy Chews (half each)
1.4 × Energy Chews / hr
1.6 × Sport Energy Chews / hr
61 gcarbs / hr
120 mgsodium / hr
—caffeine / hr
$16.00for the race
🎒 6 packs of chews of GU Energy Energy Chews
🎒 7 packs of chews of Skratch Labs Sport Energy Chews
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.