Privacy

Race Shark 🦈 is a private training planner run by Mark Rowe for a few invited running clubmates. No ads, no analytics, and nothing is sold or shared.

What it stores

• From Strava, when you sign in: your athlete ID, name and access tokens; for your runs, the date, distance, times and laps, to tick off planned sessions.
• From intervals.icu, when you connect your watch: your athlete ID and access token.
• Your plan: the race, its date, a recent race time and the days you train.

What it does with it

• Writes your planned workouts to your intervals.icu calendar, and sets your run threshold pace, so they reach your Garmin watch.
• Adds a short summary to the description of a Strava run that matches a planned session. It never changes the title.
• Shows your data only to you. Strava data is never shown to other users or used for AI.
• Reads no Garmin data.

Where it lives

A Supabase database, served from Vercel. Access tokens are encrypted.

Removing it

• Disconnect your watch in Settings, or revoke access in Strava (Settings → My Apps) or intervals.icu.
• Revoking Strava access deletes your Strava tokens and runs straight away.
• Ask Mark and he deletes everything else.

Updated 13 October 2026.