Calculate game time from your inputs, with a result breakdown and worked steps.
Game Time Formula and Method
Rotating player-minutes = (active − locked) × duration
Number the roster P1 onward. Players designated as locked are the first labels and remain active throughout. The remaining players move through the available rotating positions on a circular schedule. Each segment advances that group by one roster position and lasts an equal share of the game.
How to Use This Calculator
Select the result and any applicable method before entering the visible values. Check the selected record, unit and scoring conventions before calculating. Review the primary result and its breakdown, then open the calculation steps to see how the inputs were used.
Worked Example
With the example inputs in the table, the result is 10 segments. Player labels P1 onward represent the roster; the first locked count plays every segment.
Minutes per rotating player = 5 × 40 ÷ 10 Advance each rotating position by one roster number per segment.
Input and Example Guide
| Input or category | Example or weight | Entry guidance |
|---|---|---|
| Roster size (players) | 10 | Use a whole count in the stated unit. |
| Players active at once (players) | 5 | Use a whole count in the stated unit. |
| Players who stay on for the entire game (players) | 0 | Use a whole count in the stated unit. |
| Game duration (minutes) | 40 | Use the stated unit; retain available precision. |
Interpreting the Result
Every rotating player receives the same total minutes because every label appears in the same number of segments. If substitutes exist, at least one active position must remain available to rotate them. The plan may involve frequent changes and does not account for playing positions, substitution stoppages or rest-spacing preferences.
This circular plan provides equal totals with continuous substitutions. It does not enforce positions, legal substitution windows, rest spacing or season reports.
Assumptions and Common Input Errors
Player labels P1 onward represent the roster; the first locked count plays every segment. Use credited records rather than mixing estimates with final totals. A blank field is not treated as zero; enter zero explicitly when it is a valid observation.
Saving and Revising a Scenario
A successful calculation is saved in this browser and can be restored on the next visit. Editing an input clears the old result so it is not mistaken for an updated calculation. Reset returns the example inputs and clears the saved result.
