公平轮换 / 替补工具
各时段上场时间均衡。
Random rotation that minimizes bench time across periods.
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点击 构建轮换 查看结果。
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最近结果
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常见问题
How does the tool keep playing time even?
Before each period it sorts the roster by periods already played and fills the on-field slots from the bottom up, breaking ties randomly. A player only gets extra time once everyone else has caught up.
How can I check the schedule is actually balanced?
Expand "Minutes played per player" under the grid. Because the tool always picks the least-played players first, totals can never differ by more than one period across the roster.
What if I have fewer players than on-field slots?
Everyone simply plays every period. The tool caps each period's lineup at your roster size, so a five-slot setting with four players just fields all four each time.
Can I give stronger players more time?
No — equal time is the point of this tool, and every player is treated identically apart from random tie-breaks. If what you need is position allocation rather than minutes, the Random Sports Position Assigner is the companion tool.
Do the tie-breaks favor anyone?
No. When several players are level on playing time, a random draw decides who fills the remaining slots, so nobody is consistently first off the bench. Click Build rotation again for a different fair arrangement.
相关随机器
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.