Our monitoring detected a 38% increase in median latency on the EU West WebSocket relay node. Affected: in-play odds push delivery for football and cricket. REST polling endpoints remained fully operational throughout.

• 11:22 UTCInvestigating — Elevated latency detected by EU West monitoring node. Engineers paged.
• 11:31 UTCIdentified — Network congestion at upstream provider affecting relay node egress bandwidth.
• 11:47 UTCMitigated — Traffic rerouted to US East and EU Central relay nodes. Latency normalised.
• 12:05 UTCResolved — EU West relay node restored to normal operation. Duration: 43 minutes. Max latency: 287ms.

A Champions League knockout match produced an unusually high volume of match events in a short window (14 goals in 30 minutes across concurrent fixtures). This caused a 4–9 minute webhook delivery delay affecting approximately 180 customers.

• 19:14 UTCInvestigating — Webhook queue depth spike detected. Engineers engaged.
• 19:28 UTCFix deployed — Additional consumer workers provisioned. Queue processing rate increased 4×.
• 19:43 UTCResolved — All queued webhooks delivered. Max delay: 9 min 12 sec. Postmortem queued.

Planned maintenance window for database schema migration to support the new bulk export endpoint. Historical Data API was placed in read-only mode for the duration. All other endpoints remained unaffected.

• 02:00 UTCMaintenance started — Historical Data API read-only mode active. Announced 7 days in advance.
• 03:41 UTCCompleted — Migration successful. Read-write access restored 19 minutes ahead of schedule.