Master Your Ultra Race
The ultimate app for race strategy, nutrition tracking, crew coordination, and goal management. Don't leave your performance to chance.
Available now on iPhone • Free download
Everything you need to cross the finish line.
1. Race Management
Course & Goal Setup
- Multi-Goal Categories: Plan for official Races, FKT attempts, or targeted Training runs.
- GPX Elevation Parser: Upload GPX track files to instantly extract distance, elevation gain/loss, and route segments.
- Verified Race Catalog: Choose from popular pre-built ultra races with prefilled checkpoints and cut-offs.
- Community Submissions: Submit custom race routes to share with the global runner catalog.
Pacing & Strategy
- Effort-Based Pacing: Automatically calculates split times based on elevation and terrain difficulty.
- Dynamic Target Slider: Adjust finish time goals on the fly with live split recalculations.
- Environmental Scaling: Scale hydration and electrolyte needs based on race day temperature and humidity.
- Clock Time Projections: Track exact arrival times of day at every station with 12h/24h support.
Aid Stations & Drop Bags
- Aid Station Customization: Configure station distances, cut-offs, and available course resources.
- Checkpoint Access Tiers: Label stops by Crew Aid Allowed, Cheering Only, or Organizer Aid Only.
- Drop Bag Prep Lists: Itemize required nutrition reloads and backup gear for every drop bag station.
- Printable PDF Roadbooks: Export complete pacing schedules and logistical cheat sheets for offline use.
2. Nutrition Management
Physiological Profiling
- Athlete Biometrics: Derive baseline energy expenditure and intake targets from body weight, height, and sex.
- Sweat Rate & Salt Loss: Personalize fluid and sodium needs to your sweat category and sodium loss profile.
- Gut Training Tolerance: Calibrate carbohydrate targets to your digestive tolerance (Beginner to Advanced).
- Target Overrides: Toggle between automated scientific baselines and manual lab-tested targets.
Fuel Strategy & Carry Plans
- Endurance Pantry Database: Organize gels, drink mixes, chews, electrolyte tablets, and salt capsules.
- Macro & Mineral Tracking: Track carbs, calories, sodium, caffeine, potassium, magnesium, and calcium.
- Gut Fatigue Decay Model: Automatically tapers carb targets in ultra-long races (15h+) to prevent stomach shutdown.
- Deficit & Dilution Alerts: Real-time warnings for fluid deficits and improper drink mix dilution ratios.
Intake Simulator & Totals
- Hourly Intake Simulator: Test fuel combinations and plain water in an interactive sandbox against targets.
- Total Fuel Calculator: Overview of total calories, carbs, hydration, and sodium needed for the event.
- Strategic Caffeine Timing: Timed caffeine boost recommendations for the latter stages of your effort.
- Multi-Mineral Balancing: Balance electrolytes to prevent cramping and maintain neuromuscular function.
3. Crew Management
Live Sync & Navigation
- Instant Crew Pairing: Share a 6-character invitation code for instant crew access to your race plan.
- Dedicated Crew Mode: Clean, focused interface built specifically for support crews on race day.
- Turn-by-Turn Navigation: One-tap directions to aid stations and viewpoints via Apple Maps, Google Maps, or Waze.
- Parking & Access Notes: Meeting instructions, shuttle requirements, and trail access details.
Directives & Handoffs
- Categorized Athlete Requests: Assign specific tasks across Food, Gear, Care, and Mental support.
- Interactive Task Checklists: Live checklists for crew to prepare gear and nutrition before the runner arrives.
- Athlete Takeback Reminders: Protocols for what to collect from the runner (empty flasks, wrappers, wet layers).
- Spectator Viewpoints: Coordinate cheer zones along the course outside of official aid stations.
Span-Based Pack Logistics
- Smart Vest Packing: Calculates multi-leg resupply spans between major reload points and starting flask fill.
- Drop Bag Checklists: Pre-race item checklists for bags handed over to organizers at bib pickup.
- Crew Vehicle Gear: Organized packing lists for gear, coolers, and essentials kept in the support car.
- Station & Free Notes: Private crew notes and customizable to-do lists for smooth race day execution.
Simple, Transparent Pricing
Get started for free on your single goal, or unlock unlimited multi-day ultra planning and live crew coordination with Ultra Pro.
Free
Essential race planning and fueling calculators for your single target race or training goal.
Free forever • No credit card required
- 1 Active Goal / Race Plan
- Up to 12 Hours Race Duration
- Up to 3 Custom Pantry Items
- GPX Course Elevation & Effort Pacing
- Sweat Rate & Sodium Baseline Profiling
- 100% Offline Local Device Storage
Ultra Pro
The complete strategic execution system for serious ultramarathoners, crew captains, and coaches.
or €5,99 / month • Cancel anytime
Includes 7-day free trial on annual subscriptions
- Unlimited Goals, Races & FKTs
- Unlimited Race Durations (>12h, 100M, 48h+)
- Unlimited Pantry Items & Brand Catalog
- Live Crew Sync via 6-character code
- Multi-Leg Span Packing & Drop Bag Lists
- Community Race Submissions & Catalog
- Printable PDF Roadbooks & Crew Directives
* Prices may vary slightly across regions, countries, and local taxes according to App Store pricing tiers.
Frequently Asked Questions
Unlike generic GPS trackers, Ultra-Go is purpose-built for the complex logistics and physiology of ultramarathons across three core pillars: Race Management (elevation effort pacing, GPX parsing, drop bag planning), Nutrition Management (sweat and salt profiling, gut fatigue decay modeling, hourly simulator), and Crew Management (instant crew code syncing, turn-by-turn navigation, athlete directives, span-based packing).
You can upload a .gpx course file or configure a route manually. Ultra-Go applies an effort-based pacing model that weights elevation gain and descent against distance. You can dynamically adjust your target finish time with a live slider to recalculate segment splits and arrival clock times across the entire course.
Ultra-Go incorporates your expected race day temperature (°C / °F) and humidity (%) into its hydration engine. Hotter and more humid conditions automatically scale up your hourly fluid and sodium targets to protect against dehydration and cramping.
The app features an endurance-tested Gut Fatigue Decay Model that realistically tapers carbohydrate targets in ultra-long races (15+ hours). It also provides deficit alerts and dilution warnings when drink mixes and gels exceed recommended fluid ratios.
You can organize your favorite endurance products (gels, drink mixes, chews, electrolyte tablets, and salt capsules) with full macro and mineral tracking in your Pantry. The Intake Simulator lets you test different product combinations and water amounts in an interactive sandbox against your hourly baseline targets.
Athletes generate a unique 6-character Crew Invitation Code. Crew members simply enter this code on their own mobile devices to open a dedicated Crew Mode, giving them instant access to arrival time projections, station rules, and athlete request checklists.
The app provides 1-tap turn-by-turn GPS navigation to aid stations and spectator viewpoints via Apple Maps, Google Maps, or Waze. Crews receive categorized athlete requests (Food, Gear, Care, Mental) and reminders of items to collect from the runner at every meeting point.
Ultra-Go groups race segments into resupply spans between major reload points (Start Line, Drop Bags, Crew Aid). It generates itemized packing lists for your starting race vest, pre-race drop bags handed to organizers, and backup gear kept in the crew vehicle.
No. All your pacing timelines, aid station details, nutrition plans, and packing lists are stored locally on your device for 100% offline access in remote mountain areas. You can also export and share complete printable PDF roadbooks.
Yes! You can select from verified system races (like UTMB or Leadville 100) with prefilled checkpoints and cut-offs, or submit your own custom races to the community catalog for other runners to use.
Ultra-Go is completely free to download and use with 1 goal, up to 12 hours race duration, and 3 custom pantry items. Ultra Pro unlocks unlimited races, multi-day (>12h to 48h+) pacing, unlimited pantry items, and real-time crew sync. In Europe, Ultra Pro is €39,99/year (with a 7-day free trial) or €5,99/month. In the US, Ultra Pro is $34.99/year (with a 7-day free trial) or $4.99/month. Prices may vary slightly across regions due to local taxes and currency conversions.
Ready to master your next ultra?
Download Ultra-Go on the App Store today and take control of your race pacing, nutrition, and crew coordination.
Available now on iPhone • Free download