Zulau – Pace & Marathon Finder

Your all-in-one running & triathlon toolkit: calculate pace, predict race times, and find marathons worldwide. Fast, accurate, and no sign-up required.

Zulau is the all-in-one pace toolkit for runners and triathletes — calculate your pace, predict your race times, and find your next marathon anywhere in the world.

PACE CALCULATOR Enter a distance and time to instantly get your pace, speed, VDOT, and equivalent race times. Works for running, swimming (per 100m/100yd), and cycling (km/h and mph), plus full triathlon splits from Sprint to Ironman.

RACE TIME PREDICTOR Know what you can run. Enter one recent result and get predicted finish times across every standard distance — 5K, 10K, half marathon, and marathon — using proven models (Riegel, VDOT, and weight-adjusted).

MARATHON FINDER Plan your next race. Browse marathons around the world and filter by country, month, and terrain (flat, rolling, hilly) to find the perfect course for a personal best or a destination race.

WHY ZULAU

• Running, swimming, cycling & triathlon — all in one app
• Fast, clean, and easy to use
• Accurate, trusted calculation models
• No account required

Whether you're chasing a personal best, planning your race season, or just curious about your pace, Zulau gives you the numbers that matter — in seconds.