A chargeback win rate needs a defined denominator and a completed measurement period. It is not a prediction for your next case.
Ask for the definition
- Does the denominator include all received disputes or only challenged cases?
- Are inquiries, alerts and accepted disputes counted?
- Are pending cases excluded from both sides of the calculation?
- What period, processor and case categories are included?
- Who verified the data and how were exclusions handled?
Watch for selection effects
A team that challenges only strong cases can report a high challenge win rate while accepting many others. Compare like-for-like populations before drawing a conclusion about a tool.
What Pingpong claims
Pingpong offers draft review and PDF formatting. We do not have a published study establishing a dispute win-rate improvement from these tools. Judge them by the work they help you complete and verify. See cost evaluation.