I finished all the phases of the contest.
In three of them 3,4,5 looks it's not complete (before the end of the contest, there was a Play button).
In every phase, when I unlocked the next one, I moved forward (except phase 5 where I got the 7* player) , won the emblem and then got back to finish with the rest stages.
I got the final announcement that beat Goliath but not sure if got the final rewards for those stages.

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