Reddit users analyzed the length of pro games and noticed that it started to reduce after patch 7.21. Compared to TI8 the average length of the games was 39 minutes and now it is 35 minutes.
The average game length in different patches
On these graphs you can see that the number of games less than 20 and more than 60 minutes long reduced drastically. This way the average game length in patch 7.21 in comparison with previous patches looks like this:
- 7.19 : 39 minutes
- 7.20 : 34 minutes
- 7.21 : 35 minutes