Serious. I think I can pull it off. I've read enough cheater threads, I'm familiar with "Marathon Investigation", and I can't help but think when I'm out on a run about how to beat the system.
All I will divulge is that I'm male, and the marathon will be run in 2018, and I have posted at LRC before. I won't even say whether or not I've run a marathon.
Another thing, if successful, I will not actually take a Boston spot. This is strictly an exercise on beating the system. I will register for the marathon that I will attempt this at.
Finally, the following text is encrypted with AES256. If needed, I can prove my identity by providing the encryption key. Obviously I'm not using my real IP address!