High Quality Content by WIKIPEDIA articles! The 1977 Seattle Mariners season was the first season in franchise history. The creation of the Mariners brought baseball back to Seattle, which had been devoid of baseball since the Seattle Pilots left for Milwaukee to become the Brewers following the 1969 season. The Mariners ended the season just avoiding last place (held by the Oakland A`s), finishing 6th in the American League West, finishing with a record of 64-98, 38 games behind the AL West Champion Kansas City Royals.