SUB. Marathon Pace & Training vs 龙豆运动

[Stop training blind. Let the data define your peak.] SUB is the marathon training partner built for Garmin and COROS runners. Connect your watch once and every run syncs automatically. Pick a goal — Sub-3, Sub-3:30, Sub-4 — and SUB turns it into per-kilometre target pace, the right races, and coach workouts that tick themselves off the moment your watch syncs. Free. No subscription. No ads. Whether you're chasing your first 5K or a sub-3 marathon, SUB plans your next race with science, not guesswork. CORE FEATURES 1. Connect once, then it's automatic • Garmin — every Forerunner, Fenix, Epix and Venu; runs land within minutes • COROS — Pace 3, Apex 2 / 2 Pro, Vertix 2, with full running dynamics and lap detail • Apple Watch (via Apple Health) and Polar • Use Garmin and COROS together — mileage is de-duplicated, never double-counted 2. Goal-driven pacing • Pick Sub-3 / Sub-3:30 / Sub-4 and get target pace per km or mile, plus 5K, 10K, half and 30K splits • Pace calculator for any distance and finish time, with a track mode for lap splits 3. Running Fitness engine • Elite-grade model: Daniels–Gilbert. Enter a recent result and unlock your fitness level • Five scientific training paces — E, M, T, I, R — no more guessing at effort • Race predictions from 5K to the marathon to shape your SUB strategy 4. Coaches and clubs • Coaches assign long runs, intervals and tempo; they auto-complete when a matching run syncs — no manual logging • Coached classes and running clubs across Hong Kong 5. Race intelligence • Races in Hong Kong, Japan and worldwide: dates, venues, distances, entry windows • Save races with one tap; countdowns live on your Home Screen widget 6. Built for Hong Kong runners • Live sports ground availability — opening slots and bookings for every public track • Real-time running weather • Monthly challenges with live rankings Also: Apple Watch app, weekly / monthly mileage widgets, leaderboards, English / Traditional Chinese / Japanese. WHY SUB? Because running isn't magic — it's oxygen engineering. Garmin Connect and COROS Training Hub log your runs; SUB turns that data into a goal, a pace and a plan, so you can put your energy on the road. Download SUB free. Never miss a race — or a chance to get stronger.

龙豆运动 is the companion app for Dragon Pod, a professional running gait analysis device. Worn on top of your shoe, Dragon Pod combines high-precision motion sensors with robust filtering algorithms to deliver detailed real-time data on running distance, pace, cadence, stride length and more. By measuring foot movement directly, Dragon Pod avoids the distance errors and fluctuations in real-time pace caused by GPS signal blockage and multipath effects. It is especially useful indoors and on treadmills, where GPS is unavailable. Default distance accuracy is better than ±2% and can be improved to within ±0.3% after a simple calibration. Data output is largely unaffected by surface type, shoe construction or changes in individual running form, with stable running dynamics readings at a steady pace. Dragon Pod captures subtle changes in pace, cadence and stride length and sends them to the app with very low latency, making it useful for intervals, sprints and other high-intensity training with rapid changes in speed. Beyond basic running metrics, 龙豆运动 provides advanced running dynamics. Ground Contact Time and Air Time offer insight into landing and cushioning efficiency. Vertical Oscillation and Vertical Ratio help assess running economy. Landing Pitch and Landing Roll describe foot landing mechanics. Lower Limb Stiffness quantifies the ability of the legs to store and return elastic energy. Stance Speed Loss reflects braking during ground contact, while Form Power Ratio shows the proportion of total power used for vertical movement. Left-right balance analysis covers stride length, ground contact time, air time, vertical oscillation, stance speed loss, directional power, lower limb stiffness and impact loading in multiple directions. These measurements help runners identify muscle imbalances, compensatory movement patterns and potential injury risks. Use 龙豆运动 to view running activities, sync data to the cloud, manage device connections and submit feedback. Create an account or sign in, then connect a Dragon Pod to access the full data recording, cloud storage and analysis features. Without signing in, you can use Guest Mode to explore selected features and screens, but your data will not sync to the cloud.