Rotación / sustitución justa

Preguntas frecuentes

Further reading

• Short-handed? The position assigner loses the same slots every time

  The Random Sports Position Assigner shuffles your players, never the positions. So when eight kids show up for an eleven-a-side lineup, which slots come back empty is not random at all — and for soccer it means nobody up front. Here is the fill order for each sport and how to read a short lineup.

• Even playing time is a counting problem (do the math before you promise it)

  Five on the field for four quarters is twenty slots. Twelve players cannot split twenty evenly, so 'everyone plays the same amount' is sometimes impossible before the whistle blows. Here is the slot arithmetic, how the rotation tool keeps the gap to a single period, and what it deliberately leaves to the coach.

• A random batting order for game day (and when to hand out positions too)

  Writing the same lineup card every week is how a rec-league coach ends up in the parking lot explaining themselves. Here's how a random batting order works, what the position-assignment option actually does, and the one spot you should never leave to chance.

• A chore roster that actually feels fair (and stops the arguments)

  The same person always ends up on bathroom duty. Here's how a random chore roster — fresh shuffle each day, rotated across the week — spreads the jobs nobody wants without anyone keeping score, and how it handles having more chores than people.

• Fair lineups and honest playing time: a coach's guide to randomizing

  Parents notice everything: who bats third, who sits the most, who always plays the easy position. Here's how to use random lineups and rotation tools to make playing time provably fair — and when not to.