Date and race-format check
The international full marathon is Sunday, April 11, 2027. Saturday, April 10 has a separate programme of shorter distances. The organizer describes a flat route finishing on Coolsingel; select the full-marathon entry and use its own start instructions.
2027 race date
NN Marathon Rotterdam: April 11, 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.
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.
