How does Heat Assignment Generator make its random choices?

Random-balanced mode uses a secure shuffle; listed-serpentine mode preserves the supplied ranking without a random reorder.

Does Heat Assignment Generator upload my inputs or results?

No. Player names, teams, results, and custom settings stay in the current browser tab and are not uploaded.

When should I use Heat Assignment Generator?

Use it to draft informal heat and lane tables before applying sport-specific qualification and seeding rules.

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PRIVATE BROWSER TOOL · PHASE 5

Heat Assignment Generator

Split competitors across multiple heats and lanes while balancing heat sizes and optionally distributing listed seeds. The complete workflow runs locally in this browser, with visible controls and a result you can inspect before copying or downloading.

LOCAL WORKBENCH

Generate a result

No upload · no account · no URL storage

Choose your settings, then select Generate.

How it works

Validate total heat capacity and preserve every competitor row.
Securely shuffle and distribute competitors evenly, or serpentine listed seeds across heats.
Assign lane numbers within each heat and report empty lanes or overflow competitors.

Worked example

Twelve competitors, two heats, and six lanes produce two full six-person heats.

Limits and interpretation

At most 100 heats, 20 lanes each, and 2,000 competitors are accepted.
Capacity below participant count leaves a visible overflow list.
Qualification, timing, club separation, and official seeding procedures are outside this generic allocator.

Privacy

Your inputs and generated results stay in this browser. This tool does not put them in a URL, analytics event, server log, or external request.

Frequently asked questions

How does Heat Assignment Generator make its random choices?: Random-balanced mode uses a secure shuffle; listed-serpentine mode preserves the supplied ranking without a random reorder.
Does Heat Assignment Generator upload my inputs or results?: No. Player names, teams, results, and custom settings stay in the current browser tab and are not uploaded.
When should I use Heat Assignment Generator?: Use it to draft informal heat and lane tables before applying sport-specific qualification and seeding rules.