[blockafor]

I think the Rio will probably do what Dynasty mentioned, but if I were running this tournament and realized that the limitations of space were very strict, I'd run each wave until they've gotten down to 650 and have at least completed level 7 like they did for wave 1. If it took 8 levels for wave 1 to get there, I would not have wave 2 play level 8 if they were under 650 after level 7. And then lets say hypothetically that it took 10 levels for wave 3 to get under 650.

On day 2, I would begin with wave 2 playing level 8. After that level, I would add the wave 1 field. After they've both completed level 10, I would add the wave 3 field.