Jamie Moyer beats the Braves. It marks his first win against Atlanta in 20 years and 2 days, the longest stretch between victories against a team in major league history. Mike Morgan had been the previous record-holder.

On May 25, 2007 — Jamie Moyer beats the Braves. It marks his first win against Atlanta in 20 years and 2 days, the longest stretch between victories against a team in major league history. Mike Morgan had been the previous record-holder.

Source:
Baseball Reference May 25