The best in WL I have done so far was 18-3 with a cheap team with Cuadrado, Insigne, Mertens, Sissoko etc and then ended 20-6 or 20-7.. I matched it a few weeks later with Neymar and Mbappe but couldn't do it with this team, started off 7-3 even though every player is streets ahead of what I'm used to using.Got to that point in FIFA 18, team full of legends, Ronaldo, Ronaldinho, Gullit, Maradona, Matthaus etc. etc. and you could tell in half the games they were being handicapped to defeat. It was that point I stopped playing FIFA for good. Complete waste of time.
Even when I did it the 1st time with the shit team, I asked myself why I was making coins because I'm not f***ing good enough to gan on a stupid run