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USTA age group calculator

Which junior division can your child play on a tournament date? 10U, 12U, 14U, 16U or 18U, using the USTA birthday-month rule.

USTA age group calculator: enter a date of birth and the tournament date to see the youngest USTA junior division (10U–18U) the player can enter. USTA uses the birthday-month rule: a player who turns 13 on June 19 must play 14U at a tournament that starts June 12.

Dates

Private: the date of birth stays on this page. We do not save it or send it anywhere.

Enter a date of birth

We show the youngest division your child can play on the tournament date, and when they age out of each one.

The birthday-month rule

Under USTA rules, a player may enter a junior division (10, 12, 14, 16 or 18 and under) if they have not passed the division’s maximum age by the last day of the month in which the tournament starts (USTA Regulation I.G.3.a). In practice, a player ages out of a division on the first day of their birthday month in the year they turn one year older than the division maximum.

Example from USTA: A player who turns 13 on June 19 is 13 by June 30, the last day of the month in which a June 12 tournament starts. They must play 14 & under, not 12 & under.

Exceptions

USTA national, section and district ranking tournaments use the month-of-birth rule. ITF-governed events, including USTA International tournaments, use the ITF year-of-birth rule instead, and each year the USTA Junior Competition Committee may name national tournaments that also use year-of-birth. Sections also set their own rules for red, orange and green ball events. Check the event’s entry page.

Sources

Checked October 12, 2026. Always confirm the age group on the tournament's entry page.

Last eligible day: born in 2014

For a player born on the 15th of each month in 2014. Any birthday in the same month gives the same dates.

Birth month10U12U14U16U18U
JanuaryDec 31, 2024Dec 31, 2026Dec 31, 2028Dec 31, 2030Dec 31, 2032
FebruaryJan 31, 2025Jan 31, 2027Jan 31, 2029Jan 31, 2031Jan 31, 2033
MarchFeb 28, 2025Feb 28, 2027Feb 28, 2029Feb 28, 2031Feb 28, 2033
AprilMar 31, 2025Mar 31, 2027Mar 31, 2029Mar 31, 2031Mar 31, 2033
MayApr 30, 2025Apr 30, 2027Apr 30, 2029Apr 30, 2031Apr 30, 2033
JuneMay 31, 2025May 31, 2027May 31, 2029May 31, 2031May 31, 2033
JulyJun 30, 2025Jun 30, 2027Jun 30, 2029Jun 30, 2031Jun 30, 2033
AugustJul 31, 2025Jul 31, 2027Jul 31, 2029Jul 31, 2031Jul 31, 2033
SeptemberAug 31, 2025Aug 31, 2027Aug 31, 2029Aug 31, 2031Aug 31, 2033
OctoberSep 30, 2025Sep 30, 2027Sep 30, 2029Sep 30, 2031Sep 30, 2033
NovemberOct 31, 2025Oct 31, 2027Oct 31, 2029Oct 31, 2031Oct 31, 2033
DecemberNov 30, 2025Nov 30, 2027Nov 30, 2029Nov 30, 2031Nov 30, 2033

Questions parents ask

How does the USTA decide which age group my child plays?

USTA junior tournaments use a birthday-month rule: a player may enter a junior division (10, 12, 14, 16 or 18 and under) if they have not passed the division’s maximum age by the last day of the month in which the tournament starts (USTA Regulation I.G.3.a). In practice, a player ages out of a division on the first day of their birthday month in the year they turn one year older than the division maximum.

My child turns 13 on June 19. Which division for a tournament on June 12?

A player who turns 13 on June 19 is 13 by June 30, the last day of the month in which a June 12 tournament starts. They must play 14 & under, not 12 & under. Eligibility for 12s ends on the first day of the birthday month, not on the birthday itself.

Can my child play up in an older age group?

Yes. A player may enter any division whose maximum age they have not passed. For USTA section and district ranking tournaments, the 2026 National Junior Regulations add that players must be 11, or have completed the USTA 10-and-under Youth Progression, by the entry deadline. Sections can add their own conditions.

Do all tournaments use this rule?

USTA national, section and district ranking tournaments use the month-of-birth rule. ITF-governed events, including USTA International tournaments, use the ITF year-of-birth rule instead, and each year the USTA Junior Competition Committee may name national tournaments that also use year-of-birth. Sections also set their own rules for red, orange and green ball events. Check the event’s entry page.

Do you store my child’s date of birth?

No. The calculation runs in your browser only. The date of birth is not saved, not added to My Player and not sent to analytics.

What to do next

Track Tournament deadlines Track the events you plan to play and get a reminder before entry closes. Rating Match predictor Win chances for a match from both players' UTR. Gear Racquet size calculator The right junior racquet length from your child's height or age, with ball and court stage.