proven track record
A "proven track record" refers to a history of successful performance or achievements in a specific area. It indicates that an individual, organization, or product has consistently delivered positive results over time. For example, a company with a proven track record in customer service has demonstrated its ability to satisfy customers repeatedly.
This term is often used in various fields, such as business, sports, and education. For instance, a sports team with a proven track record of winning championships is seen as reliable and skilled. Similarly, a job candidate with a proven track record of meeting targets is more likely to be considered for a position.