To prevent flooding or burdening upstream servers, all network requests from AxeProgress pass through a centralized async token-bucket rate limiter:

• Throughput Cap: Paced at a maximum of 5.0 requests per second globally across all users.
• Concurrency Throttling: Capped at 3 concurrent outbound connections maximum.
• Exponential Backoff: Automatic progressive delays with random jitter if any upstream throttling or latency spikes occur.

We minimize outbound traffic by storing throw data in an optimized local database:

• 1-Hour Sync Cooldown: Player profiles are cached locally. Repeat visits serve instantly from cache without touching the external API.
• Delta Syncing: Only new matches that do not already exist in the local database are fetched on subsequent syncs.
• No Bulk Harvesting: Data is synchronized strictly on-demand when a thrower enters their player ID. We do not crawl or scrape the entire player database.

AxeProgress is built with privacy-by-default principles:

• Public Factual Data Only: We only process public match scores, throw counts, and league standings.
• No Sensitive Personal Info: We do not collect, request, or store passwords, emails, phone numbers, or payment data.
• No Tracking Cookies: No invasive third-party ad pixels or tracking cookies are used.

Sports scores, individual throw scores, and match results are raw factual data:

• Under US law (e.g. Feist Publications v. Rural Telephone Service, NBA v. Motorola), factual match outcomes and scores are non-copyrightable facts.
• AxeProgress performs computational analysis and statistical modeling (rating trajectory, spread, clutch rates) on these public factual records.