This is just a tip, i use this method when such events come around

one it helps me, i kill scrap troops to fill the banking plus get a reward when it's over

First is, i go after my biggest prizes i yellow bar them, i do not kill the prize

you don't have to kill good troops, 9smaller players that don't have troops yet do to discoveries

use pirates and mercs ..

this strategy normally works best when your prizes are in the 50's and 60's but can be done at any level just works best when they are in the 50's when yellow baring,

Now that plarium had changed the prizes to be allowed to gain tournament points when not fully taking a prize, this is a bonus for you ....

Now all i killed was Pirate and merc troops got lil over 1k tournament points

filled up a lil more of the banking for a future hit

and will be gaining a sweet reward for playing it safe 

You don't have to win the prize to gain points

just hit small gain points, and at the end love your reward