Reservoir trails and two late-course time gates
The reservoir route includes repeated changes in gradient and direction. Prepare for steady effort over trail terrain, with controlled descents and enough reserve for the later miles. A scenic lap around water is not a flat road circuit, and a road-marathon pace target should be checked against the final route profile.
The two published time gates are close together late in the race. Assess your expected progress at both, including support stops, rather than relying only on a total finish estimate. The organizer says runners arriving after a gate will be withdrawn; follow those instructions instead of continuing on an unsupported assumption.
The displayed shuttle schedule begins at 07:30 and the page includes runner park-and-ride access, while spectators have a separate pass. Confirm the assigned parking area, shuttle times and spectator arrangements in the final participant instructions. Allow for queues and the transfer before the ninety-minute arrival margin, rather than treating the road journey as your entire start-access plan.
The website’s general weekend prose still places the half marathon on Sunday, while the 2027 homepage card puts it on Saturday. The full-marathon card clearly identifies October 3, but accompanying runners should check their own event schedule. Keep the final full-distance guide available offline and confirm baggage, support and weather-related route changes before departure.
Confirmed race date
Altra Kielder Marathon: October 3, 2027. Verified on October 14, 2026 against the official event information.
Last-known race profile
These details identify the race page; they do not establish the next edition's operations. The previous race date does not establish the next edition. Use the confirmed date above and recheck the final participant instructions before committing to a race-day schedule.