Stridemate: Pace Calculator

Shiv19 Labs

About this app

Stridemate is a fast, offline running pace calculator for training and race day.

Plan effort from one run to a full training cycle:
- Convert between pace, time, and distance instantly
- Pin one metric (pace, time, or distance) and recalculate the others
- Switch or convert pace units: /km, /mi, /400m
- Switch or convert distance units: kilometers and miles
- Predict race performances from 400m to 100mi

Go deeper with pacing tools:
- Splits table and chart with 400m, 800m, 1km, 1mi, 5km, and 10km options
- Splits Planner with strategy profiles: Progressive, Late Kick, and Step
- Half-delta and transition-point controls for pacing strategy
- Per-lap effort tags and rolling split analysis
- Pace Chart modal to test nearby pace/time scenarios quickly
- Heat adjustment using temperature and dew point, including reverse mode

Train smarter:
- Training pace guidance for road and track sessions
- LTHR guidance with threshold pace and heart-rate zones
- Blocks planner for 5K+ races with phase-based weekly structure
- Distance Estimator to build block/step interval workouts and estimate total distance and duration
- Save, load, delete, and copy workout presets

Customize your setup:
- Manage race distances: add custom distances, reorder, hide/show, and reset
- Theme options: light, dark, or system
- Accent presets for personal preference

Privacy-first by design:
- Works offline after install
- No account required
- No ads
- No tracking or analytics
- Data remains on your device

Built by a runner for runners.

What’s new

Welcome to Stridemate

- Fast pace, time, and distance calculations for training and race day
- Race Predictor from 400m to 100mi
- Splits Planner with chart, pacing strategies, and lap effort controls
- Training Paces, LTHR guidance, and phase-based Blocks planning
- Distance Estimator with save/load workout presets
- Heat adjustment, offline-first use, and privacy-first design