跑出你嘅
Sub-3 / Sub-4。

SUB 係一個免費跑步 App，由 Sub5 到 Sub3 揀目標、計配速、搵賽事（本地同海外）、加入跑會跑班、連 Garmin・COROS 自動同步訓練。SUB is a free marathon training app — pick your goal (sub-3 to sub-5), calculate pacing, find races (local & worldwide), join clubs, and auto-sync training from Garmin and COROS.

係！SUB 完全免費，冇訂閱、冇付費功能、冇廣告。Yes, SUB is completely free with no subscriptions, no premium features, and no ads.

SUB 收錄香港、日本同海外嘅跑步賽事，包括 5K、10K、半馬、全馬同超馬。你可以按距離篩選、儲存心水賽事、同埋記錄完賽時間。SUB lists running races in Hong Kong, Japan and overseas, including 5K, 10K, half marathon, full marathon, and ultra marathon events.

用 SUB 嘅配速計算器，輸入你嘅目標完賽時間同比賽距離，即時計算出每公里配速。例如 sub-4 馬拉松需要每公里 5:41 配速。Use SUB's pace calculator: enter your target finish time and race distance to instantly get your per-km pace. For example, a sub-4 marathon requires 5:41/km pace.

Sub3（三小時內完成馬拉松）需要平均配速 4:15/km。用 SUB App 嘅配速計算器可以即時計算任何目標時間嘅配速。A sub-3 marathon (finishing under 3 hours) requires an average pace of 4:15/km or 6:52/mile. Use SUB's pace calculator to plan your race splits.

Sub330（三小時午內完成馬拉松）需要平均配速 4:58/km。善用 SUB 嘅訓練系統和配速計算器，幫你達成 Sub330 目標。A sub-3:30 marathon requires 4:58/km average pace. Use SUB's training and pacing tools to achieve your sub-330 goal.

Sub4（四小時內完成馬拉松）需要平均配速 5:41/km。這係很多跑手嘅第一個重要目標，SUB 可以幫你計算配速同追蹤訓練進度。A sub-4 marathon requires 5:41/km pace. This is a popular milestone for many runners — SUB helps you calculate pace and track your training progress.

SUB 支援 Garmin（Forerunner、Fenix、Epix 全系列）、COROS（Pace 3、Apex 2、Vertix 2）、Apple Watch（透過 HealthKit）同 Polar。所有錶嘅 activity 都會自動同步,教練派嘅功課完成跑步即自動標記。SUB supports Garmin (all Forerunner, Fenix, Epix models), COROS (Pace 3, Apex 2, Vertix 2), Apple Watch (via HealthKit), and Polar. Every watch auto-syncs activities, and coach-assigned workouts auto-complete the moment a matching run lands.

SUB 係 Garmin 跑手練馬拉松嘅 goal-driven app。連結 Garmin Connect 之後,跑步活動每隔幾分鐘自動同步,SUB 會根據你目標(Sub3、Sub330、Sub4)計返每公里嘅 target pace,搵啱賽事,教練派嘅功課完成跑步即標記完成。Garmin Connect 係 logging tool;SUB 係 training tool。SUB is the goal-driven companion app for Garmin runners training for a marathon. After connecting Garmin Connect, runs auto-sync every few minutes; SUB calculates target pace for your Sub-3 / Sub-3:30 / Sub-4 goal, surfaces matching races, and auto-completes coach-assigned workouts. Garmin Connect logs your activity — SUB drives your training.

SUB 全面支援 COROS — Pace 3、Apex 2 Pro、Vertix 2 都連得到。Activity 自動同步,進階指標(步幅、垂直振幅、垂直振幅比、觸地時間)同 lap data 全部讀到。教練派嘅功課,你跑完幾分鐘內自動標記完成。SUB supports every COROS watch — Pace 3, Apex 2 Pro, Vertix 2 included. Activities sync automatically with full running dynamics (stride length, vertical oscillation, vertical ratio, ground contact time) and lap-by-lap detail. Coach-assigned workouts auto-complete within minutes of your run finishing.

開 SUB App → Settings → Connect Garmin → 連結你嘅 Garmin 帳號。第一次同步會 backfill 過去 90 日嘅 activities,之後每次跑完幾分鐘自動更新。完全免費。Open SUB App → Settings → Connect Garmin → connect your Garmin account. First sync backfills the past 90 days of activities; subsequent runs auto-sync within minutes. Free.

開 SUB App → Settings → Connect COROS → 連結你嘅 COROS 帳號。第一次同步會 fetch 過去 90 日 activities + 詳細 lap data,之後每幾個鐘自動 sync 一次。In SUB App → Settings → Connect COROS → connect your COROS account. First sync backfills 90 days of activities with full lap detail, then keeps syncing every few hours.

可以,而且係 SUB 嘅核心功能。兩隻錶可以同時 connect 去同一個 account。如果你戴住兩隻錶跑同一程,SUB 會智能 dedupe — 月跑量/週跑量取最大值(唔會 sum)而避免雙重計算。Coach 派嘅功課,Garmin 或 COROS 邊邊先完成 sync 就先標記完成。Yes — this is a core feature. Connect both Garmin and COROS to the same SUB account. If you wear both on the same run, SUB intelligently deduplicates: monthly and weekly mileage take the maximum across sources (never the sum), so totals stay honest. Coach-assigned workouts auto-complete from whichever watch syncs first.

Garmin Connect 係 logging 同 historical analytics 嘅工具。SUB 係 goal-driven training app:你揀 Sub3、Sub330、Sub4 目標,SUB 計返每公里需要嘅 target pace、推薦適合嘅 races、儲低 coach 派嘅 workout,跑完之後自動標記完成。SUB 仲整合 COROS + Apple Watch + Polar,跨 brand 都可以用。Garmin Connect logs runs and shows historical analytics. SUB is a goal-driven training app: you pick a marathon goal (sub-3, sub-3:30, sub-4), SUB calculates per-kilometre target pace, recommends matching races, stores coach-assigned workouts, and auto-completes them after your run. SUB also unifies COROS, Apple Watch, and Polar — perfect if you use multiple watch brands.

SUB 可以喺 iOS App Store 同 Google Play 免費下載。搜尋 "SUB 跑步" 或者直接去 subdim.app 搵下載連結。Download SUB for free from the iOS App Store or Google Play. Search "SUB running" or visit subdim.app for direct download links.

SUB 支援繁體中文、英文同日文三種語言。SUB supports Traditional Chinese, English, and Japanese.