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 Premiership 2017 Autumn Finals - XL vs nR,2017,9,21,14,00,2017,9,21,14,00 ESL Premiership 2017 Autumn Finals - MNM vs SNG,2017,9,21,18,00,2017,9,21,18,00 ESL Premiership 2017 Autumn Finals - XL vs SNG,2017,11,04,17,00,2017,11,04,17,00