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Mathematics

Round-robin matches and tournament duration

Plan the match count and a conservative total duration for two to 24 teams, with multiple courts and breaks.

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01

Your inputs

The starting values are an example.

1: single round-robin; 2: double round-robin.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

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Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

Matches=n(n−1)/2 per single round-robin. The match rounds number n−1 for even n, otherwise n. Slots per round=ceil(⌊n/2⌋/courts).

Worked example

Six teams play 15 matches over five rounds. With two courts, each round takes two slots. At 20 minutes per match and 5 minutes between slots, the total is 245 minutes.

Things to check

  • The next round begins only after all matches in the previous round end. This is a transparent schedule, not an optimisation of the shortest possible duration.
  • No break is added after the last slot. Changing time, award ceremonies and extra rest need separate allowances.

Frequently asked questions

What happens with an odd number of teams?

One team has a bye in each round. This creates n rounds instead of n−1, while the total match count remains n(n−1)/2.