What if the trial run is not within the running date?

For happy running, there is usually a fixed running date. If you find that you can't participate in cross-country running within the set date, you can consider the following ways:

1. Contact the organizer: If you left your contact information when registering, you can try to contact the organizer. Tell them why they can't take part in the activity and see if they can modify the running date or give other solutions.

2. Find another date: If the organizers agree, you can try to negotiate with them and find another date to participate in the music run. In this way, you can participate in the happy run without missing the fun of the happy run.

3. Transfer quota: If you can't participate in the Happy Run, but some friends or acquaintances are interested in the activity and can participate within the set date, you can negotiate with the organizer to transfer the quota to them.

Either way, it is recommended to contact the organizer as soon as possible to explain the situation. They may have some regulations or policies that can provide you with further help and solutions.