Find a boosting partner then get into the same match lobby together. Once in the game the person who is losing scores 3 OWN GOALS, this will then abandon the match and give the win to the other player. Repeat this for the first 4 games.
IMPORTANT - You must play the whole of the 5th game through to get the achievement. Just set the game time to 5 mins and make sure the right person wins at the end.