When the end of last chapter (published a month ago) said the Prefectural Tournament was one month away, it was meant to be taken literally!Links:
Shinohayu ch42 (Mega)
Shinohayu ch42 (Mediafire)
The tournament bracket in this chapter has been fully translated. As usual in Shinohayu, the names for the schools are taken from real life locations (but not real life middle schools) in their corresponding cities or towns. They belong to places like railway stations, shrines, parks, etc. By looking up these names in a map, it's possible to know in which part of Shimane Prefecture each school is located.
Probably, most of these schools won't play any big role in the story but just for completion here's a list of schools and cities if anyone is curious.