This is the 17605th most frequent Russian word.
турнирах
"Турнирах" means "tournaments" in English.
In this sentence, 'турнирах' is used to indicate the plural and prepositional case form of 'турнир' (tournament), showing involvement in or location at multiple tournaments.
Она участвовала в различных турнирах по шахматам.
She participated in various chess tournaments.
Here, 'турнирах' is in the prepositional case to describe the location or context where the judges were observed.
Судьи на турнирах были справедливыми.
The judges at the tournaments were fair.
In this sentence, 'турнирах' is in the prepositional case, used with the preposition 'о' (about) to indicate the topic of discussion.