PaceForge: Race Pace Planner

PaceForge is your race-day brain. Turn any recent run into a complete game plan — predicted finish times, the exact training paces to hit, heart-rate zones, and a split-by-split pacing strategy — all computed on your device in seconds, with no account and no internet required. Whether you're chasing your first 5K or a marathon PR, PaceForge gives you coach-grade answers without the subscription. WHAT'S INSIDE • Race Predictor — enter one result and see projected times for 5K, 10K, half, and marathon (Daniels' VDOT + Riegel models). • Training Paces — your personal Easy, Marathon, Threshold, Interval and Repetition paces. • Pace Calculator — instantly convert between pace, speed, time and distance. • Heart-Rate Zones — five training zones from your age and resting HR (Karvonen, Tanaka). • Race Plans — build an even or negative-split plan and get every kilometre/mile split for race day. • Track Splits — lap-by-lap targets from 200 m to a mile. • Treadmill Converter — turn an incline pace into its flat-road equivalent (Minetti grade-adjusted pace). • Personal Records — keep your all-time bests and reuse them in every tool with one tap. WHY RUNNERS LOVE IT • Works offline — works on the start line, on a plane, anywhere. No signal needed. • No account, no sign-up — your records and plans never leave your phone • Science-based — Daniels' VDOT, Riegel, Karvonen and Minetti, not guesswork. • Fast and focused — clean answers in seconds, no clutter. • Kilometres or miles, light or dark, and 7 languages: English, Español, Français, Deutsch, Italiano, Português (BR), 日本語. • Free to use, supported by ads. Back up and restore your data anytime — it always stays yours. Lace up. PaceForge does the math; you do the running.