Frankster, I think a lot of people are misinterpreting your system, and thinking you will just keep betting the same team til they win. Whereas, you won't. You are only betting big favs regardless of the team, which I think makes a lot more sense and can work. Good luck with it.
But I have one question about todays play. Should it be CWS to win 296, not 396. You won on the red sox and lost 196 on St Louis. So with the mairtingale approach, you only need to be winning the 196 you lost and the 100 you wanted to win originally. No?