WWE All Stars
45 Achievements
1,000
Xbox 360
Winner by Default
Won a Xbox LIVE match due to opponent's disqualification. Details for this achievement will be revealed once unlocked
10
How to unlock the Winner by Default achievement in WWE All Stars - Definitive Guide
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This is best done by using the Boosting Thread to find a boosting partner. Once you have one, go into a match and have your boosting partner to pick up a object by exiting the ring and click while walking away from the ring then have him hit you a couple times for him to get disqualified.
You need to win an online match by disqualification. Can be done in player or ranked, but I suggest boosting these like mentioned in Step 3 of the Road Map. If you also refer to Step 3, you can get this in your first match with the previous 2 Achievements, or do it in the second match, it's your choice.