SLF Electrolyte Comparison · 2026
Maurten Drink Mix 320
Hot-Weather Endurance · Endurance Athletes · Exercise & Workouts
Check Current PriceRead full review ↗
Open Fuel Ultra Fuel
Endurance Athletes · Exercise & Workouts · Long Distance Runners
Check Current PriceRead full review ↗Open Fuel Ultra Fuel
Best overall data score for this matchup based on formula, value, rating, and intended use.
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Maurten
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At a Glance
A quick side-by-side look at nutrition, value, and overall performance.
| Feature | Maurten Drink Mix 320 | Open Fuel Ultra Fuel | 🏆 Edge |
|---|---|---|---|
| Sodium | 500 mg | 500 mg | Tie |
| Potassium | Not listed | Not listed | Tie |
| Magnesium | Not listed | Not listed | Tie |
| Sugar | 39.0 g | 22.0 g | Open Fuel Ultra Fuel |
| Calories | 320 | 248 | Open Fuel Ultra Fuel |
| Sweetener | Maltodextrin and fructose | Maltodextrin and fructose; no non-nutritive sweeteners listed | Preference |
| Cost per serving | $3.64 | $2.08 | Open Fuel Ultra Fuel |
| SLF rating | ★★★★★4.7/5 | ★★★★☆4.0/5 | Maurten Drink Mix 320 |
VELOMIX Insulated Stainless Steel Shaker Bottle
A 24 oz insulated stainless steel shaker bottle designed to keep drinks cold while mixing protein, electrolytes, and workout hydration on the go.
Functional Ingredients
Additional active or performance-oriented ingredients recorded in the SLF database.
Maurten Drink Mix 320
- Hydrogel Technology using sodium alginate and pectin
Best for serious race-day carbohydrate fueling, especially marathon, cycling, and triathlon plans.
Open Fuel Ultra Fuel
- Maltodextrin
- fructose
- sodium citrate
- pectin
- and citric acid
Open Fuel Ultra Fuel is one of the more compelling value-focused endurance mixes for athletes who want meaningful carbohydrate and sodium in the same…
Key Differences
The most meaningful data-backed differences in this matchup.
Open Fuel Ultra Fuel
Why it matters: Lower sugar may suit people prioritizing reduced-sugar hydration.
Open Fuel Ultra Fuel
Why it matters: A lower cost per serving can make frequent use more practical.
Open Fuel Ultra Fuel
Why it matters: A broader functional-ingredient profile may appeal to users seeking vitamins or carbohydrate-assisted hydration.
Who Should Choose Each Product?
Use these guidelines to find the best fit for your hydration needs and lifestyle.
Choose Maurten Drink Mix 320 if…
- Hot-Weather Endurance
- Endurance Athletes
- Exercise & Workouts
- Heat & Outdoor Work
- Marathons
- Long Cycling Races
- Triathlon
- High Carbohydrate Race Plans
Best for serious race-day carbohydrate fueling, especially marathon, cycling, and triathlon plans.
Choose Open Fuel Ultra Fuel if…
- Endurance Athletes
- Exercise & Workouts
- Long Distance Runners
- Cyclists
- Triathletes
- Ultrarunners
- Sessions Lasting 90 Minutes Or Longer
- Athletes Targeting 60 G Carbohydrate Per Hour
Open Fuel Ultra Fuel is one of the more compelling value-focused endurance mixes for athletes who want meaningful carbohydrate and sodium in the same bottle. Its simple formula and bulk packaging are strengths, though shoppers should note the lack of potassium, magnesium, and sport certification.
Pros and Considerations
Maurten Drink Mix 320
✓ Strengths
- Substantial sodium supports exercise and hot-weather hydration
● Keep in Mind
- Contains 39.0 g sugar per serving
- Mineral amounts beyond sodium are not disclosed in the current SLF record
- Premium cost per serving
Open Fuel Ultra Fuel
✓ Strengths
- Substantial sodium supports exercise and hot-weather hydration
● Keep in Mind
- Contains 22.0 g sugar per serving
- Mineral amounts beyond sodium are not disclosed in the current SLF record
- Premium cost per serving
Open Fuel Ultra Fuel
SLF scoring considers nutrition, formula, price, certifications, intended use, and value.
Why it earns the edge
- Substantial sodium supports exercise and hot-weather hydration
Choose Maurten Drink Mix 320 instead if you:
- Hot-Weather Endurance
- Endurance Athletes
- Exercise & Workouts
- Heat & Outdoor Work
Choose Your Electrolyte
Shop the product that best fits your needs. Amazon is shown first when available, with a direct brand option as the fallback.
Maurten Drink Mix 320
Check Price on Amazon Open Fuel Ultra Fuel
Buy DirectFind the electrolyte that fits your needs
Explore the full database by activity, sodium level, sugar preference, goals, budget, and retailer.
Frequently Asked Questions
Data-backed answers based on the current SLF product records.
Which has more sodium?
Tie contains 500 mg of sodium per serving, compared with 500 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
Open Fuel Ultra Fuel has less sugar at 22.0 g per serving, versus 39.0 g. This may matter for people limiting added sugar.
Which is less expensive per serving?
Open Fuel Ultra Fuel is currently less expensive at $2.08 per serving, compared with $3.64. Pricing can change by retailer and package size.
What functional ingredients does each product include?
Maurten Drink Mix 320 lists Hydrogel Technology using sodium alginate and pectin. Open Fuel Ultra Fuel lists Maltodextrin, fructose, sodium citrate, pectin, and citric acid. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Open Fuel Ultra Fuel earns the higher SLF comparison score based on the available formula, value, rating, and intended-use data. Maurten Drink Mix 320 may still be the better fit when its specific use cases align more closely with your needs.
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Nutrition facts, pricing, and availability can change. Verify the current label before purchasing. This comparison is informational and is not medical advice.