Instructions to Import to your Google Calendar - https://support.google.com/calendar/answer/37118?hl=en (section: Advanced: Create or edit CSV). Data provided here is already in CSV format, you can copy to Notepad & save with CSV file extension and then import.
Subject,Start Date,Start Time ESL Meisterschaft 2017 Spring Playoffs - AeQ vs MM,2017,5,07,11,00,2017,5,07,11,00 ESL Meisterschaft 2017 Spring Playoffs - ATN vs ESG,2017,5,07,14,30,2017,5,07,14,30 ESL Meisterschaft 2017 Spring Playoffs - MM vs ESG,2017,5,07,17,00,2017,5,07,17,00