“Right now, there are no guarantees for organizers of large gatherings that any loosening of restrictions will happen by early fall,” said Sébastien Arsenault, President and CEO of Événements GPCQM.“Even though forecasts seem optimistic, the fact remains that there is still uncertainty, and the nature of our event requires significant operational and human planning that could not be arranged at the last minute.”Runners who already signed up and paid for their spot can ask for a refund or participate in next year’s event.The cancellation comes on the heels of the Grands Prix cyclistes race also being called off in Montreal.Organizers are hopeful that the marathon will go forth in September 2022..