Tournament referees will generally try to keep the competition mats clean, as described in the Field Setup on page 15

  • Field Mat – Make sure the Mat touches the south Border Wall, and is centered east to west. Avoid cleaning the Mat with anything that will leave a residue. Any residue, sticky or slippery, will affect the Robot’s performance compared to a new Mat (many tournaments use new Mats). Use a vacuum and/or damp cloth for dust and debris (above and below the Mat). 

Most competition tables are set up the night before a tournament, or possibly the morning of the event, so there shouldn't be much time for condensation to occur.  If a referee saw liquid water on a mat, I would expect that he or she would try to clean it away.  In my experience, we're much more accustomed to dealing with dust than water.

Steve Scherr
Virginia-DC FLL Referee Advisor

On Wed, Nov 4, 2015 at 3:34 PM, Kyongchan Song <[log in to unmask]> wrote:
Hi.

Recently we notice this year mission mat is different and very sensitive to humidity.
We experienced more slip of our robot on the mat after rain and humid day.
Is anyone has similar experience?

Is is possible that in the morning of the competition day, a judge can
wipe the mat with dry cloth to remove some moisture from a map?

Thank you.

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