141 teams have registered:

• Academy at Lincoln (Greensboro, NC)
• Adams A (Fulshear, TX)
• Adams B (Fulshear, TX)
• All Saints (Canton, MI)
• Anderson A (New York, NY)
• Anderson B (New York, NY)
• Anderson C (New York, NY)
• Annunciation Orthodox A (Houston, TX)
• Annunciation Orthodox B (Houston, TX)
• Arab A (Arab, AL)
• Arab B (Arab, AL)
• Barrington Middle-Station A (Barrington, IL)
• Barrington Middle-Station B (Barrington, IL)
• Barrington Middle-Station C (Barrington, IL)
• BASIS Austin (Austin, TX)
• BASIS McLean (McLean, VA)
• Beckendorff A (Katy, TX)
• Beckendorff B (Katy, TX)
• Beckendorff C (Katy, TX)
• Beckendorff D (Katy, TX)
• Belmont Ridge (Leesburg, VA)
• Berwick (Berwick, PA)
• Bloomington (Bloomington, IL)
• Boulan Park A (Troy, MI)
• Boulan Park B (Troy, MI)
• Brentwood A (Brentwood, TN)
• Brentwood B (Brentwood, TN)
• Brentwood C (Brentwood, TN)
• Bret Harte (San Jose, CA)
• Brown Summit (Browns Summit, NC)
• Burleigh Manor A (Ellicott City, MD)
• Burleigh Manor B (Ellicott City, MD)
• Burleigh Manor C (Ellicott City, MD)
• Burleigh Manor D (Ellicott City, MD)
• California Montessori-Orangevale (Orangevale, CA)
• Challenger-Berryessa A (San Jose, CA)
• Challenger-Berryessa B (San Jose, CA)
• Challenger-Shawnee (San Jose, CA)
• Challenger-Strawberry Park A (San Jose, CA)
• Challenger-Strawberry Park B (San Jose, CA)
• Chapin School (Princeton, NJ)
• Chenery (Belmont, MA)
• Churchill A (Carmichael, CA)
• Churchill B (Carmichael, CA)
• Churchill C (Carmichael, CA)
• Classen SAS (Oklahoma City, OK)
• Columbia Independent A (Columbia, MO)
• Columbia Independent B (Columbia, MO)
• Columbia Independent C (Columbia, MO)
• Columbia Independent D (Columbia, MO)
• Coral-Sandy Ridge (Henderson, NV)
• DaVinci Academy (Ham Lake, MN)
• Discovery (Madison, AL)
• Edgewood (Mounds View, MN)
• Eisenhower (Lawton, OK)
• Elm (Elmwood Park, IL)
• Emerson A (Ann Arbor, MI)
• Emerson B (Ann Arbor, MI)
• Great Valley (Malvern, PA)
• Greenhill A (Addison, TX)
• Greenhill B (Addison, TX)
• Greenhill C (Addison, TX)
• Greenhill D (Addison, TX)
• Greenhill E (Addison, TX)
• Harker (San Jose, CA)
• Harmony (Logan, AL)
• Harvest Park (Pleasanton, CA)
• Heritage (Livingston, NJ)
• Howard (Atlanta, GA)
• Hunter (New York, NY)
• Keith Country Day (Rockford, IL)
• Kinkaid A (Houston, TX)
• Kinkaid B (Houston, TX)
• Longfellow A (Falls Church, VA)
• Longfellow B (Falls Church, VA)
• Meadows (Las Vegas, NV)
• Metrolina (Charlotte, NC)
• Meyzeek (Louisville, KY)
• Miami Valley (Dayton, OH)
• Middlesex A (Darien, CT)
• Middlesex B (Darien, CT)
• Middlesex C (Darien, CT)
• Midtown Classical (Tallahassee, FL)
• Monrovia (Huntsville, AL)
• Noe A (Louisville, KY)
• Noe B (Louisville, KY)
• North Gwinnett A (Sugar Hill, GA)
• North Gwinnett B (Sugar Hill, GA)
• North Gwinnett C (Sugar Hill, GA)
• Paideia (Atlanta, GA)
• Prairieview (Waukee, IA)
• Quest Academy A (Palatine, IL)
• Quest Academy B (Palatine, IL)
• Quest Academy C (Palatine, IL)
• Ratner (Pepper Pike, OH)
• Redwood (Saratoga, CA)
• River Oaks Baptist (Houston, TX)
• River Trail (Johns Creek, GA)
• Roxboro (Cleveland Heights, OH)
• Sacred Heart of Jesus (Anniston, AL)
• Seoul Foreign A (Seoul, South Korea)
• Seoul Foreign B (Seoul, South Korea)
• Seoul Foreign C (Seoul, South Korea)
• Sharpsville (Sharpsville, PA)
• Smith A (Chapel Hill, NC)
• Smith B (Chapel Hill, NC)
• Smith (Troy, MI)
• Smithton (Columbia, MO)
• Springfield Franklin (Springfield, IL)
• St. Barnabas (Northfield, OH)
• St. Benedict (Chicago, IL)
• St. Croix Prep (Stillwater, MN)
• St. John's A (Houston, TX)
• St. John's B (Houston, TX)
• St. Louis Park A (St. Louis Park, MN)
• St. Louis Park B (St. Louis Park, MN)
• St. Louis Park C (St. Louis Park, MN)
• St. Mark's School of Texas A (Dallas, TX)
• St. Mark's School of Texas B (Dallas, TX)
• St. Raymond (Mount Prospect, IL)
• St. Thomas' Episcopal (Houston, TX)
• Sunset Ridge (Northfield, IL)
• Sycamore (Indianapolis, IN)
• T. H. Rogers (Houston, TX)
• Taejon (Daejeon, South Korea)
• University School of Nashville A (Nashville, TN)
• University School of Nashville B (Nashville, TN)
• Village (Houston, TX)
• Walnut Hills (Cincinnati, OH)
• Washington (Washington, MO)
• Wayzata Central + Meadow Ridge (Plymouth, MN)
• West (Columbia, MO)
• Westminster A (Atlanta, GA)
• Westminster B (Atlanta, GA)
• Westminster C (Atlanta, GA)
• White Station A (Memphis, TN)
• White Station B (Memphis, TN)
• White Station C (Memphis, TN)
• White Station D (Memphis, TN)
• Williamston (Williamston, MI)
• Winburn (Lexington, KY)

Teams must qualify for this event.

The field is limited to 144 teams.