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 LCK 2018 Spring Playoffs - SKT vs KSV,2018,3,31,08,00,2018,3,31,08,00 LCK 2018 Spring Playoffs - KT vs SKT,2018,4,04,08,00,2018,4,04,08,00 LCK 2018 Spring Playoffs - AF vs KT,2018,4,08,08,00,2018,4,08,08,00 LCK 2018 Spring Playoffs - KZ vs AF,2018,4,14,08,00,2018,4,14,08,00