Even if 200 new marshals came forward tomorrow, none of them can be included in the marshals figures.

A new marshal is deemed to be a trainee marshal until they have completed 10 "sessions" when they then become a "proper" marshal. Trainee marshals are not included in the minimum manning level figures - only the proper marshals are.

A "session" is a practice or a race session - if a new marshal does every practice and race during MGP, then by the last race day, they will have become a proper marshal.

The mimimum number of marshals required arounnd the course (all in the right places) is 516 to allow a practice or race to begin.