PR Nerd: Run Training Plans

No AI guesswork. No subscription. Just a training plan built on proven math. PR Nerd builds your 5K, 10K, half marathon or marathon plan from a recent race, using the same race-equivalency formulas coaches have trusted for decades. Every pace has a reason behind it. Nothing is generated, guessed or "adaptive." Pay once, train forever. Your first week is free, and one unlock covers every plan you'll ever build. No monthly fee. TODAY'S WORKOUT See exactly what to run today, with only the paces that workout needs. Easy days are actually easy. Hard days have a purpose. PACES FROM A REAL RACE Your Fitness Score comes from a recent race or time trial, and it sets every pace in your plan: easy, tempo, intervals and race pace. See what your current fitness predicts for the 5K, 10K, half and marathon. CHECK OFF EVERY RUN Green for done, yellow for modified, red for skipped. Add your actual distance and a note, fix any past day, and look back at exactly what you did. YOUR PLAN, YOUR WAY Life happens. Swap a workout for another of the same kind (800s for hills, an easy run for cross-training) and your paces come along. Change your answers anytime and rebuild. A READ FOR EVERY RUN Every workout comes with a PR Nerd article that fits the day: long-run fueling before your long run, tapering in taper week, race-morning execution in race week. Browse every article in the Read tab. BETWEEN TRAINING BLOCKS Log off-season runs and look back at past plans with everything you logged. PRIVATE BY DESIGN No account. Your plans and logs stay on your iPhone. FREE TO START Build your plan and use week 1 free. Unlock everything once, no subscription: every week of your plan, logging every run, workout swaps, past plans and off-season logging. PR Nerd plans are general training guidance, not medical advice. Check with a doctor before starting a new training block.