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CTMC Reference Information

Banner of students during Canadian Team Math Contesrts

UW Virtual Event Participation:


Teams must enter a lottery to be eligible to participate in the UW Virtual Event. Registration for the CTMC 2021 lottery will take place starting February 10, 2021. The deadline to register is April 12, 2021.

Teams that were expected to participate in CTMC 2020 At-UW (which was cancelled due to the COVID-19 pandemic) will have a spot reserved for them in the CTMC 2021 UW Virtual Event but still need to register for the lottery to indicate their intent to participate.

Alternatively, these teams may reserve a spot in the CTMC 2022 event by contacting us.

Please note:

  • A limited number of spots are designated for schools who have never attended CTMC At-UW before and are awarded at random.
  • Any remaining spots including 3 spots on a waiting list, will be filled at random from anyone not yet selected in the lottery registration system.
  • There is a limit of one team per school.
  • Registered schools will be notified whether they were selected in late April. Those not selected are encouraged to organize an unofficial virtual event, perhaps in coordination with other schools.
  • There is a $60 fee to participate. If you are selected to attend, you will receive an invoice by early May 2021. Payment will be accepted by invoice only and is due prior to the event. Please do not make any payment until you receive an invoice from us.

Preparing for the Event

  • The event will tentatively be held between 9:30am-4:00pm on the official contest date using Zoom.
  • It is not necessary to provide student names to secure the spot. Teachers may finalize the line-up up to the date of the contest without notifying us.
  • Watch this CTMC instructional video that describes the logistics and scoring of relays. Please note our updated calculator policy for the Individual and Relay events.

Unofficial Virtual Event Participation:

General Information

  • Contest materials for unofficial virtual events will be provided free of charge in 2021.
  • Materials can be accessed by schools registered in our system the day after the UW Virtual Event. Exceptions will be considered for schools that were already planning to run their own events between April 9 and May 20. For more details, please contact Paul McGrath (
  • As many teams of six students as desired may write the contest. The event will be designed to be run virtually. For larger groups, additional proctors may be desirable.
  • We encourage you to coordinate with nearby schools to organize or join a local virtual CTMC competition; many schools report that these events are fun and memorable. There will be a portal available to access, using your school number, that will allow you to get in contact with nearby schools who may wish to host, help organize or attend a local event.

Running the Event

  • We provide access to a web site where you can download the contest materials and instructions. The supervisor administers the event virtually and shares contest materials at appropriate times. All questions are graded on an answer only basis.
  • The supervisor may be a teacher, administrator or another adult volunteer.
  • Supervisors may invite students from other schools to join their virtual event.
  • Instructions for running the event will be available soon.
  • Watch this CTMC instructional video that describes the logistics and scoring of relays. Please note our updated calculator policy for the Individual and Relay events.