Pace Calculator - Zulau

Zulau (formerly PaceTri) is the all-in-one pace calculator and marathon race finder for runners, swimmers, cyclists, and triathletes. Calculate your pace, predict your race times, and find your next marathon anywhere in the world — all in one app. MARATHON RACE FINDER - Browse marathons from around the world in one place - Search by race name, city, or country - Filter by terrain: flat, rolling, hilly, or mountainous - Spot World Major and EMC races at a glance - See the race month for every marathon to plan your season - Find a fast flat marathon for a personal record, or a hilly course for a challenge MARATHON COURSE DETAILS - Full elevation profile chart for every course - Total elevation gain and loss before you commit to a race - Exact race distance, plus start and finish locations - Course difficulty at a glance: hairpin and sharp-turn counts - Direct link to each official marathon website for registration - Marathon information across Europe, Asia, Africa, and the Americas Marathon races are available now, with more race types coming soon. RUNNING PACE CALCULATOR - Calculate your pace per km or mile for any race distance - Convert marathon, half-marathon, 10K, and 5K times into pace - Get your speed, splits, and VDOT running fitness score instantly RACE TIME PREDICTOR - Predict your finish times across every standard distance from one recent result - Proven models: Riegel, VDOT, and weight-adjusted prediction - See how a change in body weight could affect your potential race times SWIMMING PACE CALCULATOR - Compute your swim pace per 100m or 100 yards - Convert times for pool and open-water events - Track your swimming splits and predict race outcomes CYCLING SPEED CALCULATOR - Get your cycling speed in km/h or mph - Convert times for any route or distance - Forecast your performance in cycling races TRIATHLON PACE CALCULATOR - Full multi-sport pace tool for triathlon training - Predict race times from Sprint to Ironman - Plan your swim, bike, and run splits together MORE TOOLS - Pace Percentage Calculator — adjust your pace by percentage for interval training - Grade Pace Calculator — adapt your pace for uphill and downhill segments - VDOT Calculator — your running fitness score and matching race times - BMI Calculator — monitor your Body Mass Index - Ideal Weight Calculator — recommended weight based on height and body type PERFECT FOR - Finding your next marathon race - Choosing a marathon course that matches your goal time - Marathon and race pace strategy - Pool and open-water swim timing - Cycling speed and performance - Triathlon race planning Whether you're searching for your next marathon, studying a race elevation profile, or dialing in your goal pace, Zulau puts race discovery and pace calculation in one app. Download Zulau now to find your next race, fine-tune your pace, and chase your next personal record.