Your personal running toolkit — whether you're preparing for your first 5K or chasing a new PB.

Full Potential gives you four powerful, free tools designed to help you plan smarter, race better, and train with confidence. No account required. No subscriptions. Just the tools you need.

PACE CALCULATOR
Plan your race pace down to every split.

• Set a goal time and instantly see your per-mile or per-kilometre pace — or enter a pace to get your predicted finish time
• Choose from Marathon, Half Marathon, 10K, 5K, and more — or enter a custom distance
• Go beyond even pacing with negative split strategies (halfway or gradual)
• Adjust for terrain elevation and weather conditions so your plan reflects the real course
• Set fuel reminders at your preferred interval and see exactly where on the course to take gels
• Export your full pace plan as a PDF to print or share

RACE PREDICTOR
Know what you're capable of before the start line.

• Enter a recent race result or time trial and predict your finish time across every standard distance
• Based on proven race prediction methods used by coaches and athletes worldwide
• Send any prediction straight into the Pace Calculator to build a detailed race plan around it
• Save your predictions and revisit them as your fitness improves

RACE DAY CHECKLIST
Never forget your race number (or your gels) again.

• Start with 43 coach-curated items across 9 categories: Race Essentials, Clothing & Gear, Nutrition, Pre-Race Prep, Post-Race Bag, Race Week Tasks, Mental Preparation, Race Strategy, and Logistics
• Add your own items and custom categories to make the list yours
• Share your checklist with training partners
• Reset to defaults any time for a fresh start

HEART RATE ZONES
Train at the right intensity for every session.

• Calculate your five personalised training zones — Recovery, Easy, Steady, Threshold, and Hard
• Enter your maximum heart rate manually or estimate it using age-based formulas
• Tap any zone to learn what it feels like and when to use it
• Fine-tune zone boundaries to match your own testing or coaching guidance
• Export your zones as a PDF to stick on the fridge or share with your coach

BUILT FOR EVERY RUNNER
• Switch between kilometres and miles across all tools with one tap
• Dark mode that looks great early morning or late at night
• Full tablet support with two-column layouts on iPad
• Lightweight and fast — no account, no tracking, no clutter

OPTIONAL IN-APP PURCHASE
Everything above is completely free with one save slot per tool. Want more?

• Unlimited Saves (£1.99, one-off) — remove the save limit across all four tools so you can store as many race plans, predictions, checklists, and zone calculations as you like.

Full Potential is made by Full Potential Performance Ltd — a UK-based team passionate about helping runners of all levels reach their goals.