Am I correct?
yes. best runner up determined ignoring results against 6th placed teams
no
That clears it up

sigh, it's like talking to children
some groups contain 5 teams, some 6
when determinging the best 2nd placed team results against 6th placed teams will not be taken into account. no matter how many are in the group only results against 1st, 3rd, 4th and 5th placed teams will count
clearer?