Man City set a new record for xG in a single game since the statistic began to be recorded five years ago as they demolished poor Watford 8-0 at the Etihad on 21 September, 2019. City’s xG in this game was 6.83, beating the previous record of 6.61 set by Real Madrid in their 9-1 win over Granada back in the 2014/15 season.
This pic below shows City’s dominance in the game- City had 28 shots in this game (11 on target), for a total xG of 6.83. Watford with five total shots (4 on target), could only muster a xG of 0.34