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Weather lock explained

Learn what weather lock means in VPR and why it matters for fairness and race verification.

Written by VPR

In VPR, the weather for a race is locked before the race starts. That means the system takes a snapshot of the real-world weather conditions at that moment and uses that locked weather data as part of the official race record.

This is important for fairness, because the race is not affected by changing live weather after the event has already begun.

What weather lock means

Weather lock means:

  • The weather is captured before the race begins

  • That weather becomes part of the race record

  • The race does not keep pulling fresh live weather during the event

So the weather you review before joining is part of the same locked race setup used during the race itself.

Why weather lock matters

Weather lock helps protect race integrity. Without it, race conditions could shift during the event in a way that would make replay, verification, and fairness much harder.

By locking the weather before the start, VPR makes sure the race uses one fixed weather setup that can later be checked and verified.

How weather lock fits into race fairness

Weather lock is one part of the wider race fairness system.

Before the race starts:

  1. A secure race seed is generated and locked

  2. The weather is snapshot and locked

  3. Both become part of the protected race setup

During and after the race, that setup can be used for replay and verification.

What this means for players

For players, the main takeaway is simple:

  • You can review the expected weather before joining

  • Yhose conditions are part of the official race setup

  • The race is not silently switched to different live weather halfway through

That makes weather a real strategic factor before the race, while still keeping the event fair and consistent once it starts.

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