Note: The National Federation of State High School Association often approves events which are not approved by CIAC so please go by the list of approved activities for CIAC member schools only.
| 09-20-08 | NY | Boys & Girls Cross Country | Bowdoin Park Cross Country Classic | |
| 09-20-08 | NY | Boys & Girls Cross Country | Suffern HS Cross Country Invitational | |
| 09-27-08 | RI | Boys & Girls Cross Country | New Balance Ocean State Cross Country Invitational | |
| 09-27-08 | NH | Boys & Girls Cross Country | Manchester Invitational | |
| 10-04-08 | CA | Boys & Girls Cross Country | Pepperdine Invitational | |
| 10-04-08 | VT | Cross Country Running | Woods Trail Run | |
| 10-11-08 | MA | Boys & Girls Cross Country | Massachusetts South Coast XC Challenge | |
| 10-11-08 | CT | Boys & Girls Cross Country | Wickham Invitation Cross Country Meet | |
| 10-11-08 | NY | Boys & Girls Cross Country | Manhattan Cross Country Invitational | |
| 10-18-08 | RI | Boys & Girls Cross Country | Brown University North East Cross Country Championships | |
| 10-18-08 | NY | Boys & Girls Cross Country | WRDPTFCA Cross Country Invitational | |
| 11-08-08 | NH | Boys & Girls Cross Country | New England High School Cross Country Championship | |
| 12-26-08 | ME | Boys Ice Hockey | Maine High School Hockey Invitational, Inc. | Also 12-27 & 12-29 & 12-30 & 12-31 in Biddeford, ME |
| 12-26-08 | ME | Boys Ice Hockey | Maine High School Hockey Invitational, Inc. | Also 12-27 &12-29 & 12-30 & 12-31 in Cape Elizabeth, ME |
| 12-26-08 | ME | Boys Ice Hockey | The Maine High School Hockey Invitational | Also 12-27 & 12-29 & 12-30 & 12-31 in Yarmouth, ME |
| 12-26-08 | ME | Boys Ice Hockey | The Maine High School Hockey Invitational | Also 12-27 & 12-29 & 12-30 & 12-31 in Portland, ME |
| 12-27-08 | NY | Indoor Track | Marine Corp Holiday Classic | |
| 12-27-08 | FL | Girls Basketball | KSA Enents Holiday Basketball Tournament IV | Also 12-29-08 & 12-30-08 |
| 12-27-08 | MA | Boys Wrestling | Holiday Invitational | |
| 12-29-08 | RI | Boys Ice Hockey | MSC Holiday Face-Off | Also 12-30-08 & 12-31-08 |
| 12-29-08 | VT | Girls Basketball | Bellows Falls Booster Club Tournament | Also 12-30-08 |
| 01-02-09 | ME | Boys Wrestling | Redskin Invitational | Also 01-03-2009 |
| 01-02-09 | RI | Boys & Girls Indoor Track & Field | Brown University Indoor Track & Field Classic | Also 01-03-09 |
| 01-03-09 | CT | Wrestling | Bristol Central Invitational | |
| 01-03-09 | RI | Wrestling | Chad Antoch Memorial | |
| 01-09-09 | NY | Wrestling | Eastern States Wrestling Classic | Also 01-10-09 |
| 01-10-09 | RI | Boys & Girls Indoor Track | The Rhody Classic | |
| 01-10-09 | MA | Wrestling | Chelmsford Invitational | |
| 01-16-09 | CT | Boys & Girls Track & Field | Yale Track & Field Classic at Yale | Also 01-17-09 |
| 01-17-09 | VT | Wrestling | Mt. Anthony Wrestling Invitational | |
| 01-17-09 | NY | Boys & Girls Track & Field | Stanner Games | |
| 01-23-09 | DC | Boys Wrestling | National Deaf Prep Duals Wrestling Tournament | Also 01-24-09 |
| 01-23-09 | VT | Wrestling | Essex High School Michael J. Baker Wrestling Classic | Also 01-24-09 |
| 01-24-09 | NY | Indoor Track | New Balance Games | |
| 01-24-09 | NY | Boys Swimming | Eastern States LI - Invitational Swim Championships | |
| 01-30-09 | NY | Boys & Girls Indoor Track | 102nd Millrose Games | |
| 01-31-09 | NY | Indoor Track | National Hall of Fame Classic / Mayor's | |
| 01-31-09 | CT | Wrestling | The Ridgefield Challenge | |
| 02-07-09 | NY | Boys & Girls Indoor Track | New Balance Invitational Meet | |
| 02-15-09 | FL | Boys Baseball | Cocoa Expo Baseball Spring Training | Also through 04-25-09 |
| 02-24-09 | NJ | Boys & Girls Indoor Track | Big Apple Invitational | Sanctioned only for individuals and or relay teams that have qualified for New England Championships |
| 03-06-09 | NH | Boys & Girls Indoor Track | New England High School Indoor Track Championship | |
| 03-06-09 | NH | Boys Wrestling | New England High School Wrestling Championship | Also 03-07-09 |
| 03-14-09 | NH | Girls Gymnastics | New Englsnd High School Gymnastics Championship | |
| 04-08-09 | FL | Baseball | Disney's Baseball Spring Training | Through 04-25-09 |
| 04-08-09 | FL | Softball | Disney's Softball Spring Training | Through 04-25-09 |
| 04-08-09 | FL | Boys Lacrosse | Disney's Lacrosse SpringTraining | Through 04-25-09 |
| 04-08-09 | FL | Girls Lacrosse | Disney's Lacrosse Spring Training | Through 04-25-09 |
| 04-10-09 | CA | Boys & Girls Track & Field | Arcadia InvitationalTrack & Field Meet | Also 04-11-09 |
| 04-10-09 | SC | Boys & Girls Track & Field | Taco Bell Track & Field Classic | Also 04-11-09 |
| 04-11-09 | NY | Boys & Girls Track & Field | Knight-Time Invitational Track Meet | |
| 04-17-09 | TN | Boys & Girls Track & Field | 46th Volunteer Track Classic | Also 04-18-09 |
| 04-23-09 | PA | Boys & Girls Track & Field | The Penn Relay Carnival | Also 04-24-09 and 04-25-09 |
| 05-07-09 | NY | Boys & Girls track & Field | Glenn D. Loucks Games | Also 05-08-09 and 05-09-09 |
| 05-09-09 | NY | Boys Tennis | Bobcat Invitational | |
| 05-09-09 | CT | Boys & Girls Track & Field | Hartford Public H.S. Invitation Track Meet | |
| 05-23-09 | CT | Boys Outdoor Track | Dream Invitation | |
| 06-15-09 | NH | Boys & Girls Golf | New England High School Golf Championship | |
| 09-26-09 | RI | Boys & Girls Cross Country | New Balance Ocean State Cross Country Invitational | |
| 10-10-09 | CT | Boys & Girls Cross Country | Wickham Park Invitational Cross Country Meet | |