In this guide
- Count every attempt
- Calculate net result
- Read guarantee scope
Updated 25 October 2026 by Online Blackjack Odds. This editorial revision replaces an earlier article by Howard Moon.
A real success story can still mislead
A testimonial does not have to be invented to give an incomplete impression. If many people try a strategy, some can have unusually favorable short runs. Publishing only those stories hides the distribution of results. The missing denominator is the number of people and attempts not featured.
| Headline | Question to ask |
|---|---|
| “I won ten sessions” | How many sessions were played, and what were the losses? |
| “My balance reached $1,000” | What was the final net result after deposits and withdrawals? |
| “Nine out of ten users won” | How were users selected, and how large was the tenth loss? |
| “Money-back guarantee” | Which payment is covered and what conditions apply? |
Add the money, not just the wins
Imagine nine people each report a $10 gain and one reports a $150 loss. The group result is $90 minus $150, or a $60 loss. A 90% winner rate would describe those people, but it would not establish positive total profit. This is a teaching example, not a report about a particular product.
Similarly, a peak balance is not the same as money withdrawn or net profit. Record the starting balance, additional deposits, withdrawals and final balance before making a claim about results. Fees and purchase costs also belong in the comparison.
A guarantee needs boundaries
Read the written scope of a guarantee before relying on it. A refund for a course may not cover stakes lost while trying the course. A requirement to submit records can materially affect what the promise means. This guide does not determine the enforceability of any particular terms.
Would independently confirming that one quoted customer won prove the system is profitable?
No. It would verify that customer’s reported result, not the full population or long-run expectation.
The useful question is not “Can somebody win?” but “What happens across the complete set of attempts under defined conditions?” Combine this checklist with the secret-system questions before treating a story as evidence.
Sources and further reading
Examples are educational, not a promise of results. Product descriptions do not establish local availability or endorse an operator.