272 teams have registered:

• Acton-Boxborough (Acton, MA)
• Adlai E. Stevenson A (Lincolnshire, IL)
• Adlai E. Stevenson B (Lincolnshire, IL)
• Advanced Math & Science (Marlborough, MA)
• Alagar Homeschool (Pittsburgh, PA)
• Alpharetta (Alpharetta, GA)
• Amador Valley (Pleasanton, CA)
• American Heritage-Plantation (Plantation, FL)
• Appleton West (Appleton, WI)
• Arcadia A (Arcadia, CA)
• Arcadia B (Arcadia, CA)
• Arcadia C (Arcadia, CA)
• Ashland (Ashland, OH)
• Austintown Fitch (Austintown, OH)
• Bainbridge (Bainbridge, GA)
• Ballard (Louisville, KY)
• Bellaire (Bellaire, TX)
• Bellarmine College Prep (San Jose, CA)
• Belvidere North (Belvidere, IL)
• Benton (Benton, AR)
• Bethlehem (Delmar, NY)
• Bishop Guertin (Nashua, NH)
• Bishop Heelan (Sioux City, IA)
• Blacksburg (Blacksburg, VA)
• Bloomington (Bloomington, IL)
• Boardman (Youngstown, OH)
• Boerne-Champion (Boerne, TX)
• Brandeis (San Antonio, TX)
• Branson (Branson, MO)
• Brookwood (Snellville, GA)
• Buchholz (Gainesville, FL)
• Burnsville (Burnsville, MN)
• Campbell County (Alexandria, KY)
• Carbondale (Carbondale, IL)
• Carrboro (Carrboro, NC)
• Cedar Crest (Lebanon, PA)
• Cedar Shoals (Athens, GA)
• Centennial A (Ellicott City, MD)
• Centennial B (Ellicott City, MD)
• Centennial C (Ellicott City, MD)
• Chaska (Chaska, MN)
• Chattahoochee A (Johns Creek, GA)
• Chattahoochee B (Johns Creek, GA)
• Cinco Ranch (Katy, TX)
• Cistercian A (Irving, TX)
• Cistercian B (Irving, TX)
• Clark (San Antonio, TX)
• Collins Hill (Suwanee, GA)
• Colonel By (Gloucester, ON, Canada)
• Darien (Darien, CT)
• Davis (Davis, CA)
• Del Norte (San Diego, CA)
• DeLaSalle A (Minneapolis, MN)
• DeLaSalle B (Minneapolis, MN)
• Delaware Valley (Milford, PA)
• Desert Vista A (Phoenix, AZ)
• Desert Vista B (Phoenix, AZ)
• Detroit Catholic Central A (Novi, MI)
• Detroit Catholic Central B (Novi, MI)
• Detroit Catholic Central C (Novi, MI)
• Detroit Catholic Central D (Novi, MI)
• Dorman A (Roebuck, SC)
• Dorman B (Roebuck, SC)
• Dunbar A (Lexington, KY)
• Dunbar B (Lexington, KY)
• Dunwoody (Dunwoody, GA)
• duPont Manual A (Louisville, KY)
• duPont Manual B (Louisville, KY)
• E. O. Smith (Storrs-Mansfield, CT)
• Early College at Guilford A (Greensboro, NC)
• Early College at Guilford B (Greensboro, NC)
• East Brunswick (East Brunswick, NJ)
• Eastside (Covington, GA)
• Eastview (Apple Valley, MN)
• Eden Prairie A (Eden Prairie, MN)
• Eden Prairie B (Eden Prairie, MN)
• Eden Prairie C (Eden Prairie, MN)
• Edmond Memorial (Edmond, OK)
• Emmaus (Emmaus, PA)
• Essex (Essex Junction, VT)
• Ezell-Harding (Antioch, TN)
• Farragut (Knoxville, TN)
• Fisher Catholic (Lancaster, OH)
• Fremont Scholars A
• Fremont Scholars B
• Galloway (Atlanta, GA)
• Gatton Academy (Bowling Green, KY)
• Georgetown Day (Washington, DC)
• Glenbard South (Glen Ellyn, IL)
• Gotham Scholars
• Grand River (Austinburg, OH)
• Great Neck South (Great Neck, NY)
• Grosse Pointe North (Grosse Pointe Woods, MI)
• Gwinnett Math and Science (Lawrenceville, GA)
• Hallsville (Hallsville, MO)
• Harmony Science North Austin (Pflugerville, TX)
• Hartland (Hartland, MI)
• Helias (Jefferson City, MO)
• Hickman (Columbia, MO)
• Hickory Ridge (Harrisburg, NC)
• High Point Central (High Point, NC)
• High Tech A (Lincroft, NJ)
• High Tech B (Lincroft, NJ)
• Hinsdale Central (Hinsdale, IL)
• Holland (Holland, MI)
• Holmen (Holmen, WI)
• Homestead (Cupertino, CA)
• Hoover A (Hoover, AL)
• Hoover B (Hoover, AL)
• Hudson (Hudson, WI)
• Hume-Fogg (Nashville, TN)
• Hunter (New York, NY)
• Huntsville (Huntsville, AL)
• IMSA (Aurora, IL)
• Indiana Area (Indiana, PA)
• Irondale (New Brighton, MN)
• Irvine (Irvine, CA)
• Itawamba Agricultural (Fulton, MS)
• Ithaca (Ithaca, NY)
• John Jay (San Antonio, TX)
• Johns Creek (Johns Creek, GA)
• Kealing Middle (Austin, TX)
• Kellenberg (Uniondale, NY)
• La Crosse Central (La Crosse, WI)
• La Crosse Logan (La Crosse, WI)
• La Jolla (La Jolla, CA)
• LAMP (Montgomery, AL)
• LASA A (Austin, TX)
• LASA B (Austin, TX)
• LASA C (Austin, TX)
• LASA D (Austin, TX)
• Latin School (Chicago, IL)
• Lausanne Collegiate (Memphis, TN)
• Lexington A (Lexington, MA)
• Lexington B (Lexington, MA)
• Liberty North (Liberty, MO)
• Lisgar A (Ottawa, ON, Canada)
• Lisgar B (Ottawa, ON, Canada)
• Livingston A (Livingston, NJ)
• Livingston B (Livingston, NJ)
• Livingston C (Livingston, NJ)
• Louisville Eastern A (Louisville, KY)
• Louisville Eastern B (Louisville, KY)
• Lowellville (Lowellville, OH)
• Loyola Academy (Wilmette, IL)
• Macomb (Macomb, IL)
• Maggie Walker Governor's School (Richmond, VA)
• Manheim Township A (Lancaster, PA)
• Manheim Township B (Lancaster, PA)
• Maroa-Forsyth (Maroa, IL)
• MAST (Highlands, NJ)
• Maumee Valley (Toledo, OH)
• Metea Valley (Aurora, IL)
• Millburn A (Millburn, NJ)
• Millburn B (Millburn, NJ)
• Montgomery Blair (Silver Spring, MD)
• Montpelier (Montpelier, VT)
• Morris (Morris, OK)
• Mounds Park (St. Paul, MN)
• Mount Pleasant Sacred Heart (Mount Pleasant, MI)
• Mountain Lakes (Mountain Lakes, NJ)
• Naperville North (Naperville, IL)
• New Trier (Winnetka, IL)
• Newman Catholic (Sterling, IL)
• Niles North (Skokie, IL)
• Norman (Norman, OK)
• Norman North (Norman, OK)
• North Country (Newport, VT)
• North Gwinnett (Suwanee, GA)
• North White (Monon, IN)
• Northampton (Northampton, MA)
• Northmont (Clayton, OH)
• Oak Park-River Forest (Oak Park, IL)
• Olentangy Liberty A (Powell, OH)
• Olentangy Liberty B (Powell, OH)
• Olmsted Falls (Olmsted Falls, OH)
• Olympian (Chula Vista, CA)
• Omaha North (Omaha, NE)
• Oshkosh West (Oshkosh, WI)
• Park Hill South (Riverside, MO)
• Providence (Charlotte, NC)
• Providence (Plymouth, MN)
• Quince Orchard (Gaithersburg, MD)
• Raleigh Charter (Raleigh, NC)
• Ramsay (Birmingham, AL)
• Ransom Everglades A (Coconut Grove, FL)
• Ransom Everglades B (Coconut Grove, FL)
• Ransom Everglades C (Coconut Grove, FL)
• Ransom Everglades D (Coconut Grove, FL)
• Ransom Everglades E (Coconut Grove, FL)
• Red Bank (Chattanooga, TN)
• Richard Montgomery (Rockville, MD)
• Ridgewood (Norridge, IL)
• Ripley (Ripley, WV)
• River Ridge (Woodstock, GA)
• Riverside Brookfield (Riverside, IL)
• Robbinsdale Armstrong (Plymouth, MN)
• Rock Bridge A (Columbia, MO)
• Rock Bridge B (Columbia, MO)
• Rockford Auburn A (Rockford, IL)
• Rockford Auburn B (Rockford, IL)
• Ronald Reagan (San Antonio, TX)
• Russell (Russell, KY)
• Saint Joseph A (South Bend, IN)
• Saint Joseph B (South Bend, IN)
• San Ramon Scholars
• Santa Fe Catholic (Lakeland, FL)
• Santa Monica (Santa Monica, CA)
• Savannah (Savannah, MO)
• Seven Lakes (Katy, TX)
• Sidney (Sidney, OH)
• Skyline (Ann Arbor, MI)
• Solon A (Solon, OH)
• Solon B (Solon, OH)
• Southeast Bulloch (Brooklet, GA)
• Springwood (Lanett, AL)
• St. James (Murrells Inlet, SC)
• St. Joseph Central (St. Joseph, MO)
• St. Louis Park (St. Louis Park, MN)
• St. Mark's School of Texas A (Dallas, TX)
• St. Mark's School of Texas B (Dallas, TX)
• St. Paul Academy A (St. Paul, MN)
• St. Paul Academy B (St. Paul, MN)
• St. Pius X (Kansas City, MO)
• St. Thomas (Houston, TX)
• State College A (State College, PA)
• State College B (State College, PA)
• Stigler (Stigler, OK)
• Stoughton (Stoughton, WI)
• Terry Sanford (Fayetteville, NC)
• Thomas Jefferson Classical (Mooresboro, NC)
• Thomas Jefferson Science & Tech A (Alexandria, VA)
• Thomas Jefferson Science & Tech B (Alexandria, VA)
• Tippecanoe A (Tipp City, OH)
• Tippecanoe B (Tipp City, OH)
• Torrey Pines A (San Diego, CA)
• Torrey Pines B (San Diego, CA)
• Traverse City Central (Traverse City, MI)
• Treasure Valley (Boise, ID)
• Troy (Troy, MI)
• UChicago Lab (Chicago, IL)
• University Lab (Urbana, IL)
• University School (Hunting Valley, OH)
• University School of Nashville (Nashville, TN)
• Utica Academy A (Sterling Heights, MI)
• Utica Academy B (Sterling Heights, MI)
• Valdosta (Valdosta, GA)
• Valley Christian (San Jose, CA)
• Village (Houston, TX)
• Walter Johnson (Bethesda, MD)
• Warren G. Harding (Warren, OH)
• Waubonsie Valley (Aurora, IL)
• Wayzata A (Plymouth, MN)
• Wayzata B (Plymouth, MN)
• Wayzata C (Plymouth, MN)
• Wayzata D (Plymouth, MN)
• Wayzata E (Plymouth, MN)
• West Point (Cullman, AL)
• West Salem (West Salem, WI)
• Western Albemarle (Crozet, VA)
• Westlake (Westlake, OH)
• Westview (San Diego, CA)
• Westview (Portland, OR)
• Wheaton North (Wheaton, IL)
• Wheaton Warrenville South (Wheaton, IL)
• William Fremd (Palatine, IL)
• Wilmington Charter A (Wilmington, DE)
• Wilmington Charter B (Wilmington, DE)
• Wilmington Charter C (Wilmington, DE)
• Winchester Thurston (Pittsburgh, PA)
• Woodford County A (Versailles, KY)
• Woodford County B (Versailles, KY)

Teams must qualify for this event.

The field is limited to 272 teams.