I have been using secondary data to monitor ball in play time at the 2018 World Cup.
The data I am using are from the official website.
Point markers in the charts are game IDs from the tournament schedule.
Temperature and Humidity
Temperature and Ball in Play (Minutes)
Temperature and Ball in Play (%)
Ball in Play (Minutes)
Fouls and Ball in Play by Referee
Ball in Play and Fouls by Game ID