| Date | School | City | State | Number of blue tails | Number of orange tails | Ratio of blue : orange tails |
|---|---|---|---|---|---|---|
| 2010/02/02 | Ocean Bay Middle | Myrtle Beach | SC | 693 | 287 | 2.4:1 |
| 2010/01/29 | Forestbrook Middle | Myrtle Beach | SC | 171 | 69 | 2.48:1 |
| 2010/01/29 | Forestbrook Middle | Myrtle Beach | SC | 165 | 75 | 2.20:1 |
| 2010/01/29 | Forestbrook Middle | Myrtle Beach | SC | 147 | 53 | 2.77:1 |
| 2010/01/29 | Forestbrook | Myrtle Beach | SC | 193 | 67 | 2.88:1 |
| 2010/01/27 | Clyde Boyd Middle School | Sand Springs | OK | 1663 | 597 | 2.79:1 |
| 2010/01/13 | Ocean Bay Middle | Myrtle Beach | SC | 767 | 279 | 3:1 |
| 2010/01/13 | Ocean Bay Middle | Myrtle Beach | SC | 767 | 279 | 2.75:1 |
| 2010/01/09 | Loyola | Chicago | Il | 142 | 58 | 2.45:1 |
| 2009/12/23 | MS217 (802) | Briarwood | NY | 205 | 75 | 2.73:1 |
| 2009/12/22 | MS217 (801) | Briarwood | NY | 195 | 65 | 3:1 |
| 2009/12/18 | Brandywine Springs School | Wilmington | DE | 424 | 136 | 3.12:1 |
| 2009/10/27 | Mansfeld Middle School | Tucson | AZ | 958 | 351 | 2.89:1 |
| 2009/09/29 | The Waverly School E Block | Pasadena | CA | 78 | 22 | 3.55:1 |
| 2009/09/29 | The Waverly School D Block | Pasadena | CA | 110 | 50 | 2.20:1 |
| 2009/09/29 | The Waverly School C Block | Pasadena | CA | 113 | 47 | 2.40:1 |
| 2009/09/29 | The Waverly School B Block | Pasadena | CA | 83 | 37 | 2.24:1 |
| 2009/06/11 | vapa | vista | ca | 35 | 15 | 2.33:1 |
| 2009/04/01 | MOT Charter "dominators" | MIddletown | DE | 184 | 76 | 2.42:1 |
| 2009/03/31 | MOT Charter "tt-ogenes" | MIddletown | DE | 148 | 52 | 2.85:1 |
| 2009/03/31 | Ingleside Middle School | Scottsdale | AZ | 947 | 373 | 2.54:1 |
| 2009/03/31 | MOT Charter "bloranges" | MIddletown | DE | 168 | 52 | 3.23:1 |
| 2009/03/31 | MOT Charter "recessive tribe" | MIddletown | DE | 188 | 72 | 2.61:1 |
| 2009/03/23 | NWJH - "blues clues" | Coralville | IA | 343 | 117 | 2.93:1 |
| 2009/03/23 | NWJH - "blues clues" | Coralville | IA | 343 | 117 | 2.93:1 |
| 2009/03/23 | NWJH - "Dominant Genies" | Coralville | IA | 260 | 100 | 2.60:1 |
| 2009/03/23 | NWJH - "BlueGenes" | Coralville | IA | 1014 | 386 | 2.63:1 |
| 2009/03/23 | NWJH - "BlueGenes" | Coralville | IA | 1014 | 386 | 2.63:1 |
| 2009/03/23 | NWJH - "The Tintinabulators" | Iowa City | IA | 199 | 61 | 3.26:1 |
| 2009/03/23 | NWJH - | Coralville | IA | 383 | 97 | 3.95:1 |
| 2009/03/23 | NWJH - "BrainBusters" | Coralville | IA | 160 | 60 | 2.67:1 |
| 2009/03/16 | Harding | Cedar Rapids | IA | 355 | 105 | 3.38:1 |
| 2009/03/16 | Harding 5 | Cedar Rapids | IA | 316 | 119 | 2.66:1 |
| 2009/03/16 | Harding "Marshmallow academy" | Cedar Rapids | IA | 310 | 150 | 2.07:1 |
| 2009/03/16 | Harding "C. Norris" | Cedar Rapids | IA | 263 | 77 | 3.42:1 |
| 2009/03/09 | Charleston Charter for Math & Science | Charleston | SC | 90 | 30 | 3.00:1 |
| 2009/03/09 | Charleston Charter School for Math and Science | Charleston | SC | 119 | 41 | 2.90:1 |
| 2009/03/06 | NWJH 3rd Per. | Coralville | IA | 128 | 72 | 1.78:1 |
| 2009/02/10 | Yates Elementary | Chicago | IL | 498 | 182 | 2.74:1 |
| 2008/12/22 | Brandywine Springs School | WIlmington | DE | 456 | 164 | 2.78:1 |
| 2008/12/22 | MS 217Q | Briarwood | NY | 281 | 119 | 2.36:1 |
| 2008/12/19 | MS 217 (821) | Briarwood | NY | 219 | 81 | 2.70:1 |
| 2008/12/18 | MS 217 (805) | Briarwood | NY | 240 | 60 | 4.00:1 |
| 2008/12/16 | MS 217 (831) | Briarwood | NY | 160 | 60 | 2.67:1 |
| 2008/12/16 | MS 217 (804) | Briarwood | NY | 204 | 76 | 2.68:1 |
| 2008/11/21 | MS 217 | Queens | NY | 70 | 30 | 2.33:1 |
| 2008/11/21 | MS 217 | Queens | NY | 105 | 35 | 3.00:1 |
| 2008/11/21 | MS 217 | Queens | NY | 98 | 42 | 2.33:1 |
| 2008/11/21 | MS 217 | Queens | NY | 75 | 25 | 3.00:1 |
| 2008/09/29 | Walnut Ridge Middle School | Walnut Ridge | AR | 149 | 67 | 2.22:1 |
| 2008/09/29 | Walnut Ridge Middle School | Walnut Ridge | AR | 123 | 37 | 3.32:1 |
| 2008/04/07 | Pennsville Middle School (Polk 8) | Pennsville | NJ | 97 | 43 | 2.26:1 |
| 2008/04/04 | Pennsville Middle School (Polk 2) | Pennsville | NJ | 130 | 70 | 1.86:1 |
| 2008/04/03 | Lake Bluff Middle School | Lake Bluff | IL | 92 | 28 | 3.29:1 |
| 2008/04/03 | Lake Bluff Middle School | Lake Bluff | IL | 92 | 28 | 3.29:1 |
| 2008/04/03 | Lake Bluff Middle School Period 5/6A | Lake Bluff | IL | 157 | 49 | 3.20:1 |
| 2008/04/03 | Lake Bluff Middle Skewl Period 5/6B | Lake Bluff | IL | 117 | 43 | 2.72:1 |
| 2008/04/03 | Lake Bluff Middle School Period 8/9A | Lake Bluff | IL | 150 | 50 | 3.00:1 |
| 2008/04/03 | Lake Bluff Middle Skool Period 8/9B | Lake Bluff | IL | 164 | 76 | 2.16:1 |
| 2008/04/03 | Lake Bluff Middle Skool Period 8/9B | Lake Bluff | IL | 164 | 76 | 2.16:1 |
| 2008/04/03 | Lake Bluff Middle Skool Period 8/9B | Lake Bluff | IL | 164 | 76 | 2.16:1 |
| 2008/04/03 | Lake Bluff Middle Skool Period 8/9B | Lake Bluff | IL | 164 | 76 | 2.16:1 |
| 2008/04/03 | Lake Bluff Middle Skool Period 8/9B | Lake Bluff | IL | 164 | 76 | 2.16:1 |
| 2008/04/03 | Lake Bluff Middle Skool Period 8/9B | Lake Bluff | IL | 164 | 76 | 2.16:1 |
| 2008/02/26 | Forestbrook Middle - Mangin 1 | Myrtle Beach | SC | 159 | 61 | 2.61:1 |
| 2008/02/25 | Forestbrook Middle | Myrtle Beach | SC | 595 | 245 | 2.43:1 |
| 2007/12/12 | Brandywine Springs Period 3 | Wilmington | DE | 136 | 64 | 2.12:1 |
| 2007/12/11 | Brandywine Springs Period 7 | Wilmington | DE | 191 | 69 | 2.77:1 |
| 2007/12/11 | Brandywine Springs Period 6 | Wilmington | DE | 116 | 44 | 2.64:1 |
| 2007/09/14 | The Waverly School Block B | Pasadena | CA | 102 | 38 | 2.68:1 |
| 2007/09/14 | The Waverly School Block D | Pasadena | CA | 97 | 43 | 2.26:1 |
| 2007/09/14 | The Waverly School Block C | Pasadena | CA | 119 | 41 | 2.90:1 |
| 2007/09/14 | The Waverly School Block A | Pasadena | CA | 97 | 43 | 2.26:1 |
| 2007/04/12 | MICDS | St. Louis | MO | 505 | 215 | 2.35:1 |
| 2007/04/03 | Lake Bluff Middle School Period 3/4 A | Lake Bluff | IL | 160 | 60 | 2.67:1 |
| 2007/03/28 | Pennsville Middle School | Pennsville | NJ | 89 | 31 | 2.87:1 |
| 2007/03/26 | Pennsville Middle School | Pennsville | NJ | 152 | 48 | 3.17:1 |
| 2007/03/26 | Cleveland 8th Green | Chicago | IL | 148 | 52 | 2.85:1 |
| 2007/03/26 | Cleveland 8th Blue | Chicago | Il | 107 | 29 | 3.69:1 |
| 2007/03/26 | Cleveland 8th Red | Chicago | Il | 140 | 36 | 3.89:1 |
| 2007/03/21 | Northwest JHS Per. 2 | Iowa City | IA | 187 | 73 | 2.56:1 |
| 2007/03/21 | Northwest JHS - Per. 4 | Iowa City | IA | 116 | 44 | 2.64:1 |
| 2007/03/21 | Northwest JHS - Per. 3 "All-Stars" | Iowa City | IA | 180 | 80 | 2.25:1 |
| 2007/03/21 | Northwest JHS - Per. 3 "All-Stars" | Iowa City | IA | 180 | 80 | 2.25:1 |
| 2007/03/21 | Northwest JHS Per.5 ChronocidalManiacs | Iowa City | IA | 162 | 58 | 2.79:1 |
| 2007/03/21 | Northwest JHS Per. 8 "WhizKids" | Iowa City | IA | 194 | 66 | 2.94:1 |
| 2007/03/21 | Northwest JHS p.6 "HotHippopotumusseses" | Iowa City | IA | 199 | 81 | 2.46:1 |
| 2007/03/16 | Thurman White MS | Henderson | NV | 894 | 304 | 2.94:1 |
| 2007/02/26 | Yates School | Chicago | IL | 323 | 117 | 2.76:1 |
| 2007/02/06 | Clyde Boyd Middle School | Sand Springs | OK | 1874 | 646 | 2.90:1 |
| 2006/06/29 | Farb Middle School P1 | San Diego | CA | 186 | 74 | 2.51:1 |
| 2006/06/29 | Farb Middle School P3 | San Diego | CA | 182 | 58 | 3.14:1 |
| 2006/06/29 | Farb Middle School P4 | San Diego | CA | 128 | 72 | 1.78:1 |
| 2006/05/20 | Healy | Chicago | IL | 994 | 346 | 2.87:1 |
| 2006/03/30 | Pennsville Middle School | Pennsville | NJ | 109 | 41 | 2.66:1 |
| 2006/03/30 | Pennsville Middle School | Pennsville | NJ | 110 | 50 | 2.20:1 |
| 2006/03/30 | Northern Burlington County Regional | Columbus | NJ | 614 | 243 | 2.53:1 |
| 2006/03/17 | Yates School | Chicago | IL | 301 | 119 | 2.53:1 |
| 2006/03/14 | Vista Academy, Period 5 | Vista | CA | 151 | 69 | 2.19:1 |
| 2006/03/14 | Vista Academy, Period 2 | Vista | CA | 196 | 64 | 3.06:1 |
| 2006/03/13 | Selbyville Middle | Selbyville | DE | 671 | 249 | 2.69:1 |
| 2006/02/08 | Hanby Middle School | Wilmington | DE | 680 | 268 | 2.54:1 |
| 2006/01/24 | Farb Middle School | San Diego | CA | 224 | 96 | 2.33:1 |
| 2006/01/24 | Farb Middle School | San Diego | CA | 202 | 78 | 2.59:1 |
| 2006/01/24 | Farb Middle School | San Diego | CA | 234 | 106 | 2.21:1 |
| 2006/01/03 | Middletown Middle School | Middletown | CA | 782 | 338 | 2.31:1 |
| 2005/09/23 | Waverly Middle School | Pasadena | CA | 112 | 48 | 2.33:1 |
| 2005/09/23 | Waverly Middle School | Pasadena | CA | 130 | 50 | 2.60:1 |
| 2005/09/23 | Waverly Middle School | Pasadena | CA | 130 | 70 | 1.86:1 |
| 2005/05/09 | Mary Institute and St. Louis Country Day School | St. Louis | MO | 541 | 219 | 2.47:1 |
| 2005/05/09 | Carmichael Middle School | Richland | WA | 187 | 73 | 2.56:1 |
| 2005/05/05 | Yates Elementary School | Chicago | IL | 683 | 237 | 2.88:1 |
| 2005/04/19 | Pennsville Middle School | Pennsville | NJ | 130 | 50 | 2.60:1 |
| 2005/04/19 | Pennsville Middle School | Pennsville | NJ | 118 | 42 | 2.81:1 |
| 2005/04/19 | Pennsville Middle School | Pennsville | NJ | 153 | 47 | 3.26:1 |
| 2005/04/19 | Pennsville Middle School | Pennsville | NJ | 143 | 57 | 2.51:1 |
| 2005/04/15 | Challenger Middle School | San Diego | CA | 194 | 66 | 2.94:1 |
| 2005/04/12 | Cincinnati Hills Christian Academy | Cincinnati | OH | 732 | 288 | 2.54:1 |
| 2005/03/18 | Clyde Boyd Middle School | Sand Springs | OK | 286 | 114 | 2.51:1 |
| 2005/03/18 | Clyde Boyd Middle School | Sand Springs | OK | 327 | 123 | 2.66:1 |
| 2005/03/18 | Clyde Boyd Middle School | Sand Springs | OK | 235 | 125 | 1.88:1 |
| 2005/03/18 | Clyde Boyd Middle School | Sand Springs | OK | 338 | 122 | 2.77:1 |
| 2005/03/18 | Clyde Boyd Middle School | Sand Springs | OK | 301 | 119 | 2.53:1 |
| 2005/03/18 | Clyde Boyd Middle School | Sand Springs | OK | 266 | 94 | 2.83:1 |
| 2005/03/07 | Vista Academy (Period 5) | Vista | CA | 169 | 73 | 2.32:1 |
| 2005/03/07 | Vista Academy (Period 2) | Vista | CA | 178 | 62 | 2.87:1 |
| 2005/02/16 | Carson School | Cincinnati | OH | 148 | 52 | 2.85:1 |
| 2005/02/10 | S.J. Welsh Middle School | Lake Charles | LA | 129 | 61 | 2.11:1 |
| 2005/01/25 | W.W. Lewis Middle School | Sulphur | LA | 711 | 289 | 2.46:1 |
| 2005/01/19 | Aynor Middle School | Aynor | SC | 148 | 72 | 2.06:1 |
| 2005/01/19 | Aynor Middle School | Aynor | SC | 151 | 70 | 2.16:1 |
| 2004/04/30 | Charles R. Drew Science Magnet | Buffalo | NY | 511 | 169 | 3.02:1 |
| 2004/03/11 | Laing Middle School | Mt. Pleasant | SC | 579 | 189 | 3.06:1 |
| 2004/02/10 | Vista Academy (Period 4) | Vista | CA | 184 | 76 | 2.42:1 |
| 2004/02/10 | Vista Academy (Period 6) | Vista | CA | 226 | 94 | 2.40:1 |
| 2004/02/10 | Vista Academy (Period 5) | Vista | CA | 188 | 92 | 2.04:1 |
| 2004/02/09 | Vista Academy (Period 2) | Vista | CA | 184 | 76 | 2.42:1 |
| 2004/01/28 | Gilbert Junior /Senior High School | Gilbert | IA | 172 | 68 | 2.53:1 |
| 2004/01/28 | Gilbert Junior /Senior High School | Gilbert | IA | 164 | 76 | 2.16:1 |
| 2004/01/28 | Gilbert Junior /Senior High School | Gilbert | IA | 184 | 59 | 3.12:1 |
| 2003/05/13 | West Deptford Middle School | West Deptford | NJ | 194 | 70 | 2.77:1 |
| 2003/04/22 | Mountain Gap Middle School | Huntsville | AL | 546 | 234 | 2.33:1 |
| 2003/04/16 | Clyde Boyd Junior High School | Sand Springs | OK | 311 | 149 | 2.09:1 |
| 2003/04/16 | Clyde Boyd Junior High School | Sand Springs | OK | 198 | 73 | 2.71:1 |
| 2003/04/16 | Clyde Boyd Junior High School | Sand Springs | OK | 233 | 107 | 2.18:1 |
| 2003/04/16 | Clyde Boyd Junior High School | Sand Springs | OK | 310 | 130 | 2.38:1 |
| 2003/04/16 | Clyde Boyd Junior High School | Sand Springs | OK | 276 | 104 | 2.65:1 |
| 2003/04/01 | Bonham Middle School | Temple | TX | 174 | 65 | 2.68:1 |
| 2003/03/31 | Bonham Middle School | Temple | TX | 124 | 56 | 2.21:1 |
| 2003/03/31 | Bonham Middle School | Temple | TX | 150 | 70 | 2.14:1 |
| 2003/03/28 | Laing Middle School | Mt. Pleasant | SC | 475 | 207 | 2.29:1 |
| 2003/03/27 | West Ashley Middle School | Charleston | SC | 488 | 129 | 3.78:1 |
| 2003/03/26 | Charles R. Drew Science Magnet | Buffalo | NY | 559 | 201 | 2.78:1 |
| 2003/03/12 | Forestbrook Middle School | Myrtle Beach | SC | 165 | 65 | 2.54:1 |
| 2003/03/12 | Forestbrook Middle School | Myrtle Beach | SC | 180 | 80 | 2.25:1 |
| 2003/03/12 | Forestbrook Middle School | Myrtle Beach | SC | 190 | 70 | 2.71:1 |
| 2003/03/12 | Forestbrook Middle School | Myrtle Beach | SC | 207 | 73 | 2.84:1 |
| 2003/02/26 | Laing Middle School | Mt. Pleasant | SC | 531 | 209 | 2.54:1 |
| 2003/02/25 | Palm Middle School | Lemon Grove | CA | 213 | 87 | 2.45:1 |
| 2003/02/25 | Palm Middle School | Lemon Grove | CA | 190 | 70 | 2.71:1 |
| 2003/02/25 | Palm Middle School | Lemon Grove | CA | 178 | 82 | 2.17:1 |
| 2003/02/25 | Palm Middle School | Lemon Grove | CA | 194 | 66 | 2.94:1 |
| 2003/01/29 | Birney Middle School | Charleston | SC | 106 | 34 | 3.12:1 |
| 2003/01/29 | Birney Middle School | Charleston | SC | 93 | 27 | 3.44:1 |
| 2003/01/28 | Lakewood Middle School | N. Lakewood | WA | 361 | 179 | 2.02:1 |
| 2003/01/28 | Maize Middle School | Maize | KS | 216 | 104 | 2.08:1 |
| 2003/01/22 | Gilbert Junior / Senior High School | Gilbert | IA | 498 | 142 | 3.51:1 |
| 2003/01/17 | Liberty Middle School | Madison | AL | 191 | 69 | 2.77:1 |
| 2003/01/17 | Liberty Middle School | Madison | AL | 186 | 54 | 3.44:1 |
| 2003/01/16 | Liberty Middle School | Madison | AL | 177 | 83 | 2.13:1 |
| 2003/01/09 | Castle Heights Middle School | Rock Hill | SC | 141 | 76 | 1.86:1 |
| 2003/01/09 | Castle Heights Middle School | Rock Hill | SC | 134 | 53 | 2.53:1 |
| 2002/05/28 | Hyde Park Middle School | Las Vegas | NV | 158 | 62 | 2.55:1 |
| 2002/05/28 | Hyde Park Middle School | Las Vegas | NV | 164 | 56 | 2.93:1 |
| 2002/05/28 | Hyde Park Middle School | Las Vegas | NV | 122 | 38 | 3.21:1 |
| 2002/05/28 | Hyde Park Middle School | Las Vegas | NV | 191 | 69 | 2.77:1 |
| 2002/05/13 | Birney Middle School | Charleston | SC | 79 | 21 | 3.76:1 |
| 2002/05/10 | Charles R. Drew Science Magnet | Buffalo | NY | 166 | 64 | 2.59:1 |
| 2002/05/10 | Charles R. Drew Science Magnet | Buffalo | NY | 138 | 62 | 2.23:1 |
| 2002/05/10 | Charles R. Drew Science Magnet | Buffalo | NY | 167 | 53 | 3.15:1 |
| 2002/05/10 | West Deptford Middle School | West Deptford | NJ | 653 | 252 | 2.59:1 |
| 2002/05/10 | Laing Middle School | Mt. Pleasant | SC | 437 | 143 | 3.06:1 |
| 2002/05/10 | Charles R. Drew Science Magnet | Buffalo | NY | 140 | 60 | 2.33:1 |
| 2002/05/09 | Forestbrook Middle School | Myrtle Beach | SC | 147 | 53 | 2.77:1 |
| 2002/05/09 | Forestbrook Middle School | Myrtle Beach | SC | 161 | 74 | 2.18:1 |
| 2002/05/09 | Forestbrook Middle School | Myrtle Beach | SC | 171 | 69 | 2.48:1 |
| 2002/05/09 | Forestbrook Middle School | Myrtle Beach | SC | 195 | 85 | 2.29:1 |
| 2002/05/03 | Cedar Ridge Middle School | Decatur | AL | 177 | 63 | 2.81:1 |
| 2002/05/03 | Cedar Ridge Middle School | Decatur | AL | 111 | 49 | 2.27:1 |
| 2002/05/03 | Cedar Ridge Middle School | Decatur | AL | 161 | 79 | 2.04:1 |
| 2002/04/08 | Mannington School | Salem | NJ | 80 | 20 | 4.00:1 |
| 2002/02/25 | Lower Alloways Creek School | Salem | NJ | 103 | 17 | 6.06:1 |
| 2002/02/25 | Lower Alloways Creek School | Salem | NJ | 99 | 21 | 4.71:1 |
| 2002/02/21 | Vista Academy | Vista | CA | 145 | 75 | 1.93:1 |
| 2002/02/21 | Vista Academy | Vista | CA | 196 | 84 | 2.33:1 |
| 2002/02/21 | Vista Academy | Vista | CA | 192 | 88 | 2.18:1 |
| 2002/01/16 | Lang Middle School | Mt. Pleasant | SC | 104 | 36 | 2.89:1 |
| 2002/01/15 | Lang Middle School | Mt. Pleasant | SC | 115 | 45 | 2.56:1 |
| 2002/01/15 | Lang Middle School | Mt. Pleasant | SC | 146 | 54 | 2.70:1 |
| 2002/01/15 | Lang Middle School | Mt. Pleasant | SC | 103 | 37 | 2.78:1 |