You really seem to try hard to stretch it. From what I saw, the pulling was around 40% WvA en 60% Pog.
And the main culprit was Pog: he tried 4 times to drop WvA: on Bersee (just after WvA's attack), Mons-en-Pevele, the uphill after Mons-en-Pevele and Carrefour. He also tried to put pressure on...