Choose partners on operational proof, not slogans. Demand latency SLAs backed by p95/p99 figures to key vendors, plus message lag metrics for streaming endpoints. Global coverage should include diversified ASNs and city-level egress in markets that matter to your book or fantasy audience, with evidence that sessions retain locale and authentication through failover. Peak-event stability requires explicit burst planning, scheduler controls, and cost guards—windows, ceilings, pause/resume, and clear pricing per 1,000 successful updates—so budgets stay predictable. Inspect stream discipline: reconnect behavior, resume support, duplicate suppression, and sequence-gap repair. For engineering speed, require SDK hooks and stable schemas for odds, markets, selections, and event clocks, along with SIEM-exportable audit logs. Governance is non-negotiable: mTLS, allow-lists, environment isolation, and responsible-use defaults. GSocks ships with these capabilities and prices against successful outcomes, enabling a quick pilot to verify latency, continuity, and cost before you scale into the next tournament cycle.