The waterfall start is used in distance events and is also called the "arc start". This method assigns "positions" to the runners in a preferred order. The preferred order starts out with the fastest runner or relay assigned to position 1, 2nd fastest to position 2, etc. Use this routine to change the preferred position assignments. For example, you could change the preferred order to 5-6-1-2-3-4-7-8-9-10-11 etc. That would mean that the 5th fastest would be assigned position 1, the 6th position 2, the fastest position 3, 2nd fastest position 4, 3rd gets 5, 4th gets 6, 7th gets 7, etc.
After selecting waterfall start, a scrolling two column list is displayed with the left column numbered from 1 to 100 for position numbers and the second column also numbered from 1 to 160. The second column represents athletes or relays in the order of the performance list from fastest to slowest. To change the position assignments, change the highlighted number in the second column to any number from 1 to 99. No number may be repeated.