2027 race date
ST Lawrence Marathon: April 24, 2027. Checked against the official organizer source on October 13, 2026.
The date was checked separately from the course and planning details below, reviewed October 14, 2026. Recheck entry availability and the final athlete guide before travel.
A point-to-point journey into Cornwall, Ontario
The St. Lawrence organizer describes the marathon from Crysler Park Marina to St. Lawrence College in Cornwall, Ontario. The race follows the river corridor, while the event's shorter distances also use the Great Lakes Waterfront Trail. The April 24, 2027 full marathon therefore needs its own start-transport plan; the festival's finish address alone will not get you to the marathon start.
Work out the two ends of the journey separately. Confirm how the organizer expects marathon runners to reach Crysler Park Marina, whether transport requires a reservation, and where belongings are collected after finishing at the college. Do not assume a shuttle is included just because another point-to-point race provided one. Put the approved boarding location and deadline in your notes once the current instructions are issued.
For pacing, follow the full route's sequence of aid points rather than borrowing a shorter race's out-and-back plan. A river route can offer long stretches where it is tempting to lock onto one watch pace. Keep a contingency for the day's wind and conditions, adjusting effort when needed instead of treating a slower exposed section as time that must immediately be recovered.
Arrange a finish meeting in Cornwall and make clear that this is Cornwall in Ontario when coordinating travel. Supporters who take you to the start still need time and a permitted route to the finish. Registration was described as coming soon at this source check, so verify that your entry is complete before treating transport or accommodation bookings as the final step in your race preparation.
Last-known race profile
These details identify the race page; they do not establish the next edition's operations. Confirm current course and operations on the official event site.
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.