Koetsch simulated the statistical expectation for even money with 100 placed bets session samples for 600 times, total 60.000 placed bets with 1.7% house edge.
The following pictures show the stats and the expectation for each session.
1700 session or 17% out of 60.000 placed bets did not have a back to back result during 100 placed bets session, reversal.
43.000 played 100 placed bets session had at least one reversal during the session, back to back results, break even.
I implement this with my testing.
Each time a session starts with a negative or I get one negative during the session without reaching my win target.
Then I know that the majority of times I will get back to back results and break even.