This is very rich subject matter... You can do all sorts of things, with varying degree of sophistication.Quote from davewolfs:
I'd appreciate any input that you have on what you think would be a methodical approach to coming up with these numbers.
But, to start off, let me respond with a question. If you have a time series (your tick data), can you a) identify your entry points; b) calculate max drawdown per lot, say?