The gap up was related to the G20 Trump and Xi meeting which caused all trade sensitive currencies against the dollar to gap up. It was just coincidence that you were long because both were long for very different reasons. One of you was long because of the Iranian ship and the other long because oil was predicted to be at its low. If the G20 meeting had failed, it would have gapped the other way and you both would be either stopped out or holding onto a loss. It was luck in other words. Well done nonetheless.
Plan the trade, don't assume.