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The video should be a good example of what they can expect from you at a marathon. Obviously strategies may differ for safety reasons, but showing you're competent at the game and can execute it well is important.
It's unlikely that your run was rejected because of your PB video, unless it contained egregious swearing or you spent the entire run shittalking the game or something like that.
It's unlikely that your run was rejected because of your PB video, unless it contained egregious swearing or you spent the entire run shittalking the game or something like that.