What is the formula to calculatr number of mathches? Class 12th Physical Education, Question Paper 20230: What is the formula to calculatr number of mathches? By Rohit Sharma - March 13, 2023 Question: What is the formula to calculatr number of mathches? The correct answer is – The formula to calculate the number of matches in a league tournament where n teams participate is: Number of Matches = (n * (n-1)) / 2 In this formula, “n” represents the number of teams participating in the tournament.