What it means
A sample makes sense only when we know what population it represents. A complete ledger shows losing and winning selections, plus refunds/voids and correlations between legs.
Measurement and evidence
The full ledger: the only base for verifiable ROI
For each entry, save before the result: timestamp, market, selection, odds, stake/units, context and then settlement.
Example
Calculate ROI as net profit divided by total stake over the same period. Keep event count too, not only the percentage; three outcomes do not describe a strategy.
Watch out for
Result screenshots and retrospective posts are not substitutes for entries recorded before settlement. In our research, this is the primary limit of channel archives.
Educational content, not betting advice. Odds do not remove risk; check the operator's rules and stop if gambling is no longer fun or controlled.
Your next useful step
Go deeper where it matters, or try Betty directly in Telegram.
