M.A.A. Spring Rec Baseball and Fastpitch Registration is open. Registration will close in EARLY March. Please register now. 4K-5K, 1-2nd Grade, 3-4th Grade, 5-6th Grade and 7-8th Grade.

Boys Select Baseball Mavericks Spring Scrimmage Registration is going on now! If your team would like to participate, please click here to Register.   For more information, please click here. 7th Grade (U13) and 8th Grade (U14) are closed.

Girls Select Fastpitch Merton Mayhem Scrimmage registration is going on now . Please click here to register.  Please click here for more information. U12 and U14 Girls levels are closed.

MAA Memos

Congratulations to Mavericks Coach, Jon Wallgren who is the recipient of the Sportsmanship Award by the WSYBL.



27: Boys AMSAC basketball tournament week starts


1: Rec baseball and Fastpitch registration ends

4: Boys AMSAC basketball tournament ends

8: No adult Volleyball

11: no indoor soccer

23: 3-4th Grade boys basketball ends

25: last day of indoor soccer

Contact Heidi Blatnik, M.A.A. Activities Director (mailto:actdir@mertonathletics.org) with general questions or feedback.

 M.A.A. Programs


  • AMSAC Girls Basketball 5th and 6th Grade - September 12 is deadline to register, games start on October 1.
  • 3-4th Grade Girls Rec Basketball - October
  • 5-6th Grade Boys Rec Basketball - October
  • 7-8th Grade Boys Rec Basketball - October
  • 1-2nd Grade Co-ed Rec basketball - October

ADULT CO-ED VOLLEYBALL - to register please click here


  • AMSAC Boys Basketball 5th and 6th Grade - January
  • 3-4th Grade Boys Rec Basketball - January
  • 5-6th Grade Girls Rec Basketball - January
  • Soccer Co-ed Indoor 5K-1st Grade, 2-3rd Grade, 4-5-6th Grade - Late January


  • 4K-5K coach pitch baseball
  • 1st-2nd Grade Machine pitch boys baseball
  • 1st-2nd Grade Machine pitch girls fastpitch
  • 3rd-4th Grade boys little leauge baseball
  • 3rd-4th Grade girls fastpitch
  • 5th-6th Grade boys little leauge baseball
  • 5th-6th Grade girls fastpitch
  • 7th-8th Grade boys little leauge
  • 7th-8th Grade girls fastpitch