Concurrent matchcount charts
Concurrent numbers are estimated by taking all the matches active at a particular moment in time and counting all the players in them. Because of the way this service is designed charts are not entirely independent from each other which means you can notice some discrepancies in charts with larger slices, namely hour and up. These take data from the previous slice scale based on the moment in time with the highest overall playercount, for example an hour slice takes data from the highest playercount 15 minute slice that happened during the hour and so on. This means there are situations where more specific charts may not show the highest possible value for a given parameter. Refer to day charts with 15 minute slices for more accurate and consistent data.