Orange Ball Racket. Players must use a racket that is no longer than 25 inches (63.5 cm). https://www.usta.com/content/dam/usta/2021-pdfs/2021-Net-Generation-Pathway-Regulations.pdf
The USTA Southern California 10U Green Ball Grand Prix Series is for players residing in Southern California. Top point earners from each season will be invited to a two-day Early Development Camp, focusing on fundamentals and athletic development for 10U players.
All players will be part of the USTA Net Generation Pathway and earn Net Generation PlayTracker points. USTA Junior Circuits do not contribute to National rankings.
To participate in the Green Ball Junior Circuit, players must meet one of the following criteria:
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9 years old, or
Have earned 1,000 orange ball play points, or
Be at least 7 years old and have successfully been assessed by a Safe Play approved USPTA or PTR* certified coach who has completed the Net Generation assessment training. Learn how to use the assessment tool here .
Note: Players' All-Star Series standings will be published weekly on the Match Tennis App
The schedule for the 10U Green Ball Grand Prix Series season can be found here Green Ball Calendar
Seasons Schedule:
Grand Prix Circuit Season
The Winter season will run from Dec 6, 2025 to March 15, 2026. The end-of-the-season camp will be held on April 11-12, 2026. The site is TBD.
The last Grand Prix Tournament date that will count towards the points race for the 10U Invitational Early Development Camp will be March 15, 2026
Invites to go out by March 20, 2026
The Spring Grand Prix season will run from March 21, 2026 to June 14, 2026. The end-of-the-season camp will be held on July 11-12, 2026. The site is TBD.
Spring/Summer season will begin on March 21, 2026 - June 14, 2026. The last Grand Prix Tournament date that will count towards the points race for the 10U Early Education Camp will be June 14, 2026
Invites to go out by June 19, 2026
The Summer/Fall Grand Prix Season will run from June 20, 2026 - October 18th, 2026. The end-of-season camp will be held on November 14-15, 2026. The site isTBD..
Summer/Fall Season will begin on June 20, 2026.
The last grand prix tournament date that will count towards the points race for the 10U Early Education Camp will be October 18th, 2026
Invites to go out by October 23, 2026
For the full tournament schedule, please refer to the Green Ball Calendar.
For every match won, player receives 8 points (max 4 matches)
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USTA SoCal 10U Yellow Ball Grand Prix Series
The 10U Yellow Ball Grand Prix Series offers a supplemental pathway for 10U players who have earned the required PlayTracker points in Green Ball tournaments to advance to Yellow Ball play, before moving on to 12U Yellow Ball events.
Eligibility: Players must have earned 1500 PlayTracker points from 10U Green Ball tournaments, with at least 1000 points from wins.
Points: Competitors accumulate Grand Prix points (not Net Generation Play Tracker or National ranking points).
Standings: Points are displayed on the Match Tennis App , with standings published bi-weekly.
The top point earners from each season will be invited to participate in an end-of-the-season Early Development Camp.
Season Schedule
Winter Season
Dates: Dec 6, 2025 - March 15, 2026
End-of-Season Camp: April 11-12, 2026 (TBD)
Last Tournament Date: March 15, 2026
Invitations Sent: By March 20, 2026
Spring Season
Dates: March 21 - June 14, 2026
End-of-Season Camp: July 11-12, 2026 (TBD)
Last Tournament Date: June 14, 2026
Invitations Sent: By June 19, 2026
Summer/Fall Season
Dates: June 20 - Oct 18, 2026
End-of-Season Camp: Nov 14-15, 2026 (TBD)
Last Tournament Date: Oct 18, 2026
Invitation s Sent: By Oct 23, 2026
Early Development Camp Selection:
8 girls and 8 boys will be invited to each Early Development Camp, based on their point standings in the All-Star Series Circuit
No wildcards will be issued.
In the case of a tie, the WTN (World Tennis Number) will be used as a tiebreaker.
Note: The 10U Yellow Ball Grand Prix Series is restricted to players residing in Southern California.
For the full season calendar, visit the Yellow Ball Calendar.
For every match won, player receives 8 points (max 4 matches)