The earliest known gaming competition occurred on 19 October 1972 at Stanford School for the overall game Spacewar.[15] Stanford students were asked to an "Intergalactic spacewar olympics" whose grand reward was a year's registration for Rolling Rock, with Bruce Baumgart earning the five-man-free-for-all competition and Tovar and Robert E. Maas winning the Team Competition.[16] THE AREA Invaders Championship presented by Atari in 1980 was the earliest large scale video game competition, getting more than 10,000 individuals across the United States, establishing competitive games as a mainstream hobby.[17] In the summertime of 1980, Walter Day founded a higher rating record keeping business called Twin Galaxies.[18] The business went on to help promote video gaming and publicize its data through publications such as the Guinness Reserve of World Records, and in 1983 it created the U.S. Country wide Video Game Team. The team was involved with contests, such as operating the