Triathlon Race Planner & Pace Calculator
Plan your swim, bike, run — and hit your target time
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Artem Kupratsevich

Triathlon Race Planner & Pace Calculator - Plan your swim, bike, run — and hit your target time

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A simple web tool to plan your triathlon race day and dial in your running pace. Set your target finish times, plug in realistic paces, and see exactly where you’re ahead or behind before you hit the start line.

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Artem Kupratsevich
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Why I built it When I looked for triathlon and running pace calculators online, I kept landing on the same type of pages: walls of form fields, long explanations, tables everywhere, and half the screen taken by ads or unrelated content. They technically work, but they feel more like old-school calculators bolted onto a blog than tools you’d actually want to use the week before your race. I didn’t want to scroll through paragraphs of text just to do a few simple “what if” checks. The project has two main parts, both designed to be fast and visually simple: Triathlon race planner – Set your race distances and target finish time. – Enter swim pace, bike speed, run pace, and transitions. – Immediately see your splits and total time — no extra dropdowns, no multi-step wizard. – Tweak a few numbers and watch your plan update in real time, instead of juggling three different calculators. Running pace calculator – Plan standalone 5K, 10K, half, marathon, or custom races in a single, clean view. – Convert between pace, distance, and finish time without being dumped into a massive multipurpose calculator page. – Built to open on your phone, plug in two numbers, and be done in a few seconds.