The following lists of interstate competition events are approved for CIAC member high schools. If the event your school wants to participate in is not on this list the event has not been approved for participation for CIAC schools.
BORDERING STATE EVENTSNATIONAL EVENTS
| Date | Host | Sport | Event Title |
| 05/21/13 | NY | Boys & Girls Outdoor Track & Field | Tiger Team Pentathlon |
Note: The NFHS often approves events which are not approved by CIAC so please go by the list of approved activities for CIAC member schools only.
| Date | Host | Sport | Event Title |
| 09/22/12 | NY | Boys & Girls Cross Country | Bowdoin Park Cross Country Classic |
| 09/22/12 | NH | Boys & Girls Cross Country | Manchester Cross Country Invitational |
| 09/27/12 | MO | Boys Soccer | Gateway City Soccer Classic |
| 09/28/12 | PA | Boys & Girls Cross Country | Lehigh University Paul Short Run |
| 09/29/12 | NC | Boys & Girls Cross Country | Great American Cross Country Festival |
| 09/29/12 | NJ | Boys & Girls Cross Country | Six Flags Wild Safari Invitational |
| 09/29/12 | CT | Boys & Girls Cross Country | Winding Trails Invitational |
| 09/29/12 | RI | Boys & Girls Cross Country | Ocean State XC Invitational |
| 09/29/12 | VA | Boys & Girls Cross Country | Marymont X-Country Festival |
| 09/29/12 | NY | Boys & Girls Cross Country | McQuaid Invitational |
| 10/06/12 | CT | Boys & Girls Cross Country | Wickham Invitational |
| 10/06/12 | VT | Boys & Girls Cross Country | Woods Trail Run |
| 10/06/12 | NY | Boys & Girls Cross | 42nd St. Anthony's HS Cross Cross Country Invitational |
| 10/13/12 | NY | Boys & Girls Cross Country | Manhattan Cross Country HS Invitational |
| 10/20/12 | RI | Boys & Girls Cross Country | Northeast Cross Country Championship |
| 10/20/12 | MD | Boys & Girls Cross Country | Georgetown Prep Classic |
| 11/10/12 | ME | Boys & Girls Cross Country | New England Championship |
| 12/01/12 | NH | Boys Basketball | Boys Pre-Season Jamboree |
| 12/15/12 | NY | Boys & Girls Indoor Track & Field | Bishop LoughlinGames 2012 |
| 12/27/12 | RI | Boys Ice Hockey | Mount St. Charles Holiday Face-Off Also 12-28-12 and 12-29-12 |
| 12/28/12 | ME | Wrestling | Noble Wrestling Invitational Also 12-29-12 |
| 12/28/12 | NY | Boys & Girls Indoor Track & Field | North Shore High School Track & Field Invitational |
| 12/29/12 | RI | Boys & Girls Indoor Track & Field | Rhode Island Classic |
| 01/04/13 | NY | Boys & Girls Indoor Track & Field | The Hispanic Games Also 01-05-13 |
| 01/04/13 | ME | Wrestling | Sanford Wrestling Annual Tournament Also 01-05-13 |
| 01/05/13 | RI | Wrestling | 17th Annual Chad Antoch Memorial Wrestling Tournament |
| 01/11/13 | NJ | Boys & Girls Basketball | Living Hope Festival Also 01-12-2013 |
| 01/11/13 | NY | Wrestling | Eastern States Classic Also 01-12-13 |
| 01/11/13 | NH | Boys & Girls Indoor Track & Field | Dartmouth Relays Also 01-12-13 |
| 01/12/13 | RI | Boys & Girls Indoor Track & Field | URI Track Classic |
| 01/12/13 | NH | Wrestling | Merrimack HoF Invitational |
| 01/16/13 | NY | Boys & Girls Indoor Track & Field | The Millrose Games Trials |
| 01/17/13 | MA | Boys & Girls Basketball | Basketball Hall of Fame's Hoophall Classic Also 01-18-13 and 01-19-13 and 01-21-13 |
| 01/18/13 | GA | Boys Wrestling | Prep Slam V - 2013 Also 01-19-13 |
| 01/18/13 | CT | Boys & Girls Indoor Track | Yale Track Classic Also 01-18-12 |
| 01/19/13 | NJ | Boys Basketball | MLK-I HAVE A DREAM SHOWCASE Also 01-20-13 and 01-21-13 |
| 01/19/13 | NJ | Boys & Girls Basketball | MLK Basketball Classic Also 01-20-13 |
| 01/19/13 | NH | Wrestling | Timberlane Wrestling Invitational |
| 01/19/13 | RI | Boys & Girls Indoor Track & Field | Eastcoast Invitational |
| 01/25/13 | TX | Wrestling | Willigan Tournament Also 01-26-13 |
| 01/26/13 | NY | Boys Swimming & Diving | Eastern State Swim Champs |
| 02/01/13 | VA | Boys & Girls Indoor Track & field | Virginia Tech. High School Invitational Also 02-02-13 |
| 02/09/13 | NY | Girls Basketball | The MECCA Also 02-10-13 |
| 02/16/13 | NY | Boys & Girls Indoor Track & Field | The Millrose Games |
| 02/21/13 | FL | Boys & Girls Lacrosse | 2013 Disney Lacrosse Spring Training Through 04-21-13 |
| 02/21/13 | FL | Girls Softball | 2013 Disney Softball Spring Training Through 04-21-13 |
| 02/21/13 | FL | Baseball | 2013 Disney Baseball Spring Training Through 04-21-13 |
| 03/01/13 | RI | Wrestling | New England Championship Also 03-02-13 |
| 03/02/13 | MA | Boys & Girls Indoor Track & Field | New England Championship |
| 03/08/13 | FL | Boys Baseball | Vero Beach Sports Village High School Baseball Spring Training Through 04-13-13 |
| 03/09/13 | MA | Girls Gymnastics | New England Championship |
| 03/22/13 | FL | Boys & Girls Outdoor Track & Field | FSU Relays Also 03-23-13 |
| 03/28/13 | TX | Boys & Girls Outdoor Track & Field | 86th Clyde Littlefield Texas Relays Also 03-29-13 and 03-30-13 |
| 04/05/13 | SC | Boys & Girls Outdoor Track & Field | Beach Run Invitational Also 04-06-13 |
| 04/05/13 | CA | Boys & Girls Outdoor Track & Field | Arcadia Invitational Also 04-06-13 |
| 04/05/13 | CA | Boys & Girls Outdoor Track & Fileld | South Pasadena Tiger Invitational |
| 04/06/13 | RI | Boys & Girls Outdoor Track & Field | 45th Annual Rhode Island Knight of Columbus 4 Mile Relay |
| 04/19/13 | CA | Boys & Girls Outdoor Trak & Field | Mt SAC Relays Also 04-20-13 |
| 04/19/13 | NY | Boys & Girls Outdoor Track & Field | New York Relays Also 04-20-13 |
| 04/20/13 | MD | Boys & Girls Outdoor Track & Field | The 8th Annual Viking Invitational |
| 04/20/13 | NC | Boys & Girls Outdoor Track & Field | Blue Ridge Classic |
| 04/20/13 | MD | Boys & Girls Outdoor Track & Field | 2013 Mustang Invitational |
| 04/20/13 | NY | Boys & Girls Outdoor Track & Field | Big Blue Track & Field Classic |
| 04/25/13 | PA | Boys & Girls Outdoor Track & Field | Penn Relays Through 04-27-13 |
| 05/03/13 | CT | Boys & Girls Outdoor Track & Field | Irv Black Invitational Track Meet Also 05-04-13 |
| 05/09/13 | NY | Boys & Girls Outdoor Track & Field | Glenn D. Loucks Games Also 05-10-13 and 05-11-13 |
| 05/17/13 | AR | Boys & Girls Outdoor Track & Field | Dream Invitation |
| 05/18/13 | NY | Boys & Girls Outdoor Track & Field | 73rd Annual William F. Eddy Jr. Memorial Track & Field Meet |
| 06/08/13 | NH | Boys & Girls Outdoor Track & Field | New England Championship |
| 06/17/13 | NH | Boys & Girls Golf | New England Championship |
| 09/28/13 | RI | Boys & Girls Cross Country | Ocean State XC Invitational |
| 10/14/13 | MA | Girls Volleyball | Volleyball's Hall of Fame's Volleyball Classic |
| 12/26/13 | SC | Boys & Girls Basketball | 8th Annual Bobcat Classic Also 12-27-13 & 12-28-13 |
| 12/27/13 | LA | Boys Wrestling | Deep South Bayou Duals Also 12-28-13 |