On Saturdays, teams will sign onto the Airmeet link included on their welcome package for either the morning or afternoon session. Students will then cycle through 6 Sprint tasks and 2 Intermediate tasks. Participants will have 17 hours to complete the challenge, although the challenge is only designed to take around 2.5 hours. Project submissions will be judged live at 6:00PM MDT via Zoom and scores will be released during the closing ceremony as well as on the C3 website about a week after the challenge closes.

Yes and no. While all students do compete directly against each other, participants are subdivided into 2 tiers: Junior High (grades 6-9) and High School (grades 10-12). Each tier has different challenge requirements based on the curriculum of the grades it encompasses. The numerical scores from each tier will be scaled and weighed directly against each other.

One month before each C3 challenge date, the C3 team will release a welcome package via email. This email will contain the relevant information relating to the challenge. Please read the document carefully and understand all the rules.

The morning sessions run from 8:30AM MST to 12:30PM MST. The afternoon sessions run from 1:20PM MST to 5:15PM MST. Participants only need to attend one of the two sessions as both sessions are the same.

If you need assistance with Sprints and Marathons, you are welcome to contact your Station Moderator as you are completing the challenges. If you require assistance with a Marathon Challenge, please call one of the Help Phone Numbers provided in your welcome package.

Stable Internet is required for the Saturday portion of the challenges. However, if your Internet connection drops unexpectedly we do have accommodations for that. For the Sunday portion, our team anticipates that roughly 2.5 hours worth of stable Internet access during the 17-hour challenge period will be more than enough to complete our challenges. However, we recognize that our participants come from different backgrounds and this may not be possible for all participants. The computer-based portions of our challenges can be completed with free, downloadable software, and there are also aspects of the challenges which do not require computer usage!