2027 race date
SudburyROCKS!!! Marathon: May 30, 2027. Checked against the official organizer source on October 13, 2026.
The date check does not confirm entry availability, prices, course changes, cutoffs or race-week arrangements. Recheck the current athlete guide before relying on those details.
Current date status
The next edition date is not confirmed by a current organizer source. The next race date is not confirmed here. Check the organizer’s next-edition announcement before planning travel.
Training calendar
These start dates count back from the first listed race day. For a multi-day event, recalculate from your assigned day. The duration is a planning option, not proof of readiness.
