The USTA in Florida started a new format:

2016 10U Green Ball Sectional Championship

This is a 2-day section-wide championship for 10U players using green balls in singles and doubles.

  • Replaces the existing 10U division played during the June Bobby Curtis State Singles Championship and the September Doubles.
  • Player qualifies to play in the 10U Championship by being the winner or finalist in one of 16 designated Level 6 USTA Florida tournaments held between January and September.
  • If less than 32 players are eligible by being a winner or finalist in criteria 1 above, alternate players may be invited from the USTA FL Master Data Tracking list of players with the most green ball wins between January and September.

More...

https://www.ustaflorida.com/event/2016-10u-green-ball-sectional-championship/

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Do you think this is a good idea? Did your kid already participate in a Regional Qualifier?

What was your experience?