PaceBrain

What it does

PaceBrain uses 6 peer-reviewed scientific models to predict your race finish time in 30 seconds: for free. Unlike generic running apps, it gives you a Performance DNA profile, AI training plans that adapt weekly, heart rate intelligence, and a race simulator to visualize your fitness trajectory. From 5K to ultra, stop guessing and start running with data. Available as desktop app or Apple iPhone app.

Train smarter with AI-powered coaching, personalized race strategies, and data-driven insights. Track your progress, join challenges, and reach your running goals.

PaceBrain predicts your race time, then builds the training to make you faster. Free to try, no signup. If you're running for fitness without a goal, save your money. If any of these sound like you, keep reading. Sub-4 marathon. Sub-50 10K. A specific number that means something to you. 8 weeks out, 16 weeks out, six months. The date is real and the doubt is real. Not a wishful guess. The number your last 90 days of training has earned you. Other calculators give you a number and walk away. PaceBrain closes the loop — every prediction comes with a plan to make it faster. Paste any recent race — 5K parkrun, half marathon, 10K. We run six prediction models and give you one honest number with…from pacebrain.app

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