Privacy Policy

1. Introduction

This Privacy Policy explains how CourtMaster ("we", "us", "our") collects, uses, stores, and protects your personal data when you ("User") use our mobile and web application (the "App").

We are committed to safeguarding your privacy and complying with the General Data Protection Regulation (GDPR) and all applicable EU privacy laws.

By creating an account or using CourtMaster, you agree to the practices described in this Policy.

2. Eligibility — 18+ Only

CourtMaster is available exclusively to individuals aged 18 or older.

We do not knowingly collect or process data from individuals under 18.
If we discover that an account belongs to someone under 18, we will delete the account and all associated data.

3. Data Controller

The data controller responsible for your personal data is:

CourtMaster
Email: privacy@courtmaster.app
Website: https://www.courtmaster.app/

4. Personal Data We Collect

We collect the following categories of data:

A. Information you provide directly

  • Name
  • Email address
  • Gender
  • Profile picture (optional)
  • Tennis club / division affiliation
  • Match results you submit
  • Opponent names you enter
  • Any other content you upload (comments, notes, etc.)

B. Automatically collected information

  • Device information (model, OS, device ID)
  • App usage analytics
  • Interaction events (e.g., logins, screen views)
  • Crash logs and performance data
  • IP address

C. Information from other users

Other users may enter your name or select you as an opponent when logging a match.

This is considered personal data and we process it in accordance with this Privacy Policy.

5. Legal Bases for Processing (GDPR)

We process your data under the following legal bases:

  • Contract (Art. 6(1)(b))
    To provide the App's core functions: account management, match logging, ELO calculation, leaderboards, profile pages.
  • Legitimate Interest (Art. 6(1)(f))
    To ensure fair competition, prevent fraud, maintain security, analyze service performance, and operate club-wide rankings.
  • Consent (Art. 6(1)(a))
    For optional features such as analytics, cookies, email notifications, and marketing (only where applicable).
  • Legal Obligation (Art. 6(1)(c))
    To comply with tax, audit, security, or government-requested data actions.

You may withdraw consent at any time.

6. How We Use Your Data

We use your personal data to:

  • Create and maintain your account
  • Record tennis matches and store results
  • Calculate and update your ELO-based rating
  • Display rankings and leaderboards within your club/division
  • Provide analytics and performance insights
  • Send service-related notifications (e.g., match confirmations)
  • Detect and prevent fraud or misuse
  • Improve the App and user experience
  • Provide customer support
  • Comply with legal obligations

We never sell your personal data.

7. Automated Processing & ELO Rating Disclosure

CourtMaster uses an automated ELO algorithm to compute your rating.

This involves:

  • Comparing your performance to your opponents' ratings
  • Adjusting your rating after each verified match
  • Updating leaderboards in real time

This automated processing does not produce legal or significant effects — it only affects standings within the App.

You may request an explanation of how your rating was generated.

8. Match Data & Opponent Information

When logging matches, you may enter:

  • Opponent names
  • Match scores
  • Date/time
  • Category/division information

By using the App, you confirm you have the right to provide such data.

If someone enters your name in a match:

  • You may confirm or dispute the result
  • Unconfirmed matches do not affect ratings
  • You may request correction or deletion of incorrect match data

9. Sharing Your Data

We share your data only with:

A. Trusted third-party service providers

(e.g., Firebase, cloud hosting, authentication, analytics, error reporting)

These providers process data on our behalf under strict contracts.

B. Other users

  • Your name and rating may appear on leaderboards
  • Your match history is visible to relevant opponents or club members
  • You may appear in search results within your club

C. Legal authorities

Only if required to comply with a legal obligation.

We never sell your data to advertisers or third parties.

10. International Data Transfers

Your data may be stored or processed in:

  • EU/EEA
  • United States
  • United Kingdom
  • Other jurisdictions where our service providers operate

When data leaves the EU, we use:

  • Standard Contractual Clauses (SCCs)
  • Other GDPR-compliant safeguards

11. Data Retention

We retain personal data:

  • For as long as you maintain an active account, and
  • For a limited period thereafter to comply with legal obligations, resolve disputes, or maintain service integrity.

Upon account deletion:

  • Personal data will be deleted or anonymized within 30 days
  • Match records may be anonymized for statistical purposes

12. Your GDPR Rights

You have the following rights:

  • Right of access - request your data
  • Right to rectification - correct incorrect information
  • Right to erasure ("right to be forgotten")
  • Right to withdraw consent
  • Right to object to processing
  • Right to data portability
  • Right to restrict processing

To exercise your rights, contact:

privacy@courtmaster.app

We may need to verify your identity.

13. Security Measures

We implement industry-standard protections:

  • SSL encryption
  • Secure data storage
  • Access control
  • Audit logs
  • Regular monitoring and vulnerability testing
  • Least-privilege access principles for staff

No system is 100% secure, but we take all reasonable measures to protect your data.

14. Cookies & Tracking Technologies

Our website may use:

  • Cookies
  • Local storage
  • Analytics scripts
  • Performance & crash metrics

You will be asked to accept non-essential cookies via a consent banner, where applicable.

Mobile apps may use device-level analytics tools requiring your consent.

15. Links to External Sites

CourtMaster may contain links to external websites or services.

We are not responsible for their content or privacy practices.

16. Changes to Privacy Policy

We may update this Privacy Policy at any time.

Continued use of CourtMaster after changes constitutes acceptance of the new Privacy Policy.

17. Contact Us

For questions about this Privacy Policy:

Email: privacy@courtmaster.app
Website: https://www.courtmaster.app