Send raids with a single sword to cities as far away as possible.  Recall them just before they reach target and relaunch them as long as your raid bank balance does not exceed 10 you can have as many raids in progress as you want.  There are some tricks to making the raid travel time as long as possible to economize recalls but some raids will have to be recalled and relaunched two times during the previous week to have enough to get into the top 10 weekly rankings. I usually save all Friday-Saturday-Sunday raids to use the next week if I want to compete.  Since you get 40 raids each Saturday you can easily save up 50/60 for the next week.

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