As the founder of Twin Galaxies, the oldest video game scorekeeping and adjudication service in history, Walter Day is known as the creator of e-sports and has often been called The Patron Saint of Video Games. His remarkable efforts to find, verify and catalog video game world records has led to a decades-long partnership with The Guinness Book of World Records. The star of several films including King of Kong, Walter most recently was the subject of Arcades and Love Songs (The Ballad of Walter Day) which has been called the spiritual successor to King of Kong. In the Spring of 2025 he also released his autobiography.