Stop traing in the dark. SUB. now integrates the elite Daniels Gilbert Model.
Let science define the precision paces for your next Personal Best.
【Stop Guessing. Start Training with Precision.】
SUB is your ultimate running race companion. We don’t just help you track every race in Hong Kong; we provide the scientific edge you need to dominate them. Introducing the Running Intelligence—bringing elite-level exercise physiology directly to your pocket.
Whether you are a beginner aiming for your first 5K or a seasoned veteran chasing a SUB-3 marathon, SUB uses data-driven insights to plan your path to peak performance.
KEY FEATURES:
1. NEW: Running Intelligence
Elite Algorithm: Powered by the legendary Daniels-Gilbert Formula. Input your recent race time to instantly unlock your Running level.
Precision Training Zones: Automatically generate your personalized E (Easy), M (Marathon), T (Threshold), I (Interval), and R (Repetition) paces. No more manual charts or guesswork.
Race Predictor: Data-backed finish time predictions for 5K to Full Marathon. Know exactly what you're capable of before you even hit the start line.
2. The Ultimate HK Race Directory
Stay Updated: Browse all upcoming running events in Hong Kong at a glance.
Race Details: Access essential info including dates, locations, distances, and registration links.
Personal Race List: Save your favorite events and build your custom seasonal racing calendar.
3. Connect with the HK Running Scene
Training Info: Find local running classes and the latest training schedules.
Community Focused: Stay connected with the Hong Kong running community and never miss an event again.
WHY CHOOSE SUB?
Because running isn't just about effort—it's about oxygen engineering. SUB saves you the time spent searching for races and calculating paces, so you can focus on the road ahead.
Download SUB today. Don’t just join the race—SUB your goals.
Ratings & Reviews
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What's New
Comprehensive Mileage Widget: Track your weekly and monthly mileage directly on your Home Screen
Elite Race Countdown: Stay focused on your goals with precise, second-by-second countdowns for all your synced races. Every moment counts toward your next PB.
Live HK Track Info: Exclusive real-time integration of Hong Kong public sports ground schedules and booking status. Check availability instantly and never waste a trip to a fully booked track again.
Liquid Glass Visuals: Experience our redesigned UI featuring the 2026 Liquid Glass design system, offering seamless transparency and depth that blends perfectly with your wallpaper.
Version 1.2.2
The developer, Ching Kin Lau, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Contact Info
Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Health & Fitness
Location
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Ching Kin Lau
Size
71.3 MB
Category
Sports
Compatibility
Requires iOS 13.0 or later.
iPhone Requires iOS 13.0 or later.
iPod touch Requires iOS 13.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
