If you grab Dr Bob's results over the last 4 seasons (including the present one) from his website you would be down over 30 betting units, betting at the lines/star value he suggests in every sport.
This is over a decent sample size.
This doesn't include the following
(a) 4 years of Tout fees for every sport
(b) The fact that many of his subscribers ended up taking much worse lines after release.
The average subscriber who payed every game has to be down somewhere south of 40-50 units over that period.
The fact he continues to claim he will win at 55-60% going forward is frankly laughable.
For starters nobody can predict their winrate going forward.
Your edge is a function of the "softness" of the lines you have to bet into.
My crystal ball is on the blink, so if anyone can predcit how soft a market will be going forward you are smarter than I.
Now some will claim that the results before the previous 4 seasons are just as valid.
I personally don't agree for a number of obvious reasons.
The good news is Dr Bob is a huge winner!
D.