How AceRank Stretches a Fixed API Budget to Keep Live Tennis Scores Fresh

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AceRank, a free unofficial tennis bracket and fantasy app for ATP men's tournaments, uses an adaptive polling system to keep live scores and standings current without exceeding a fixed upstream API request budget. Because different match data — such as scores, start times, and results — changes at different rates, flat polling wastes quota on idle courts while potentially missing active ones. The system prioritizes fetches based on how overdue a match is, its round, seed, and player ranking, ensuring higher-stakes matches receive more frequent updates during busy tournament days. A scheduled worker evaluates local match state and recent API usage telemetry on each run rather than following a rigid per-match schedule. Derived standings for brackets and fantasy groups are computed server-side from ingested results, keeping vendor credentials and upstream calls away from end users entirely.

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