A tradition unlike any other: players leaving the Seattle Mariners and finding glory with other teams. Now, to be clear, the reason these guys got to play in the World Series is largely based on luck. Even if you do get way better after leaving the Mariners’ facility, the team you’re going to also has to be good at the right time and outlast other good teams in the playoffs.
Still, since 2010, 18 different players have thrown a pitch or stood in the batter’s box at the World Series with the title of “former Mariner”. This list excludes players who were on a World Series team but did not actually play in the Fall Classic, so people like 2019 Roenis Elías are not present. Also, there’s no retroactive application of the term “former Mariner”. So for instance, Nori Aoki played in the 2014 World Series, but that was before he was a Mariner, so he doesn’t count.
Take a stroll down the boulevard of broken dreams and try to name all the players to reach baseball’s greatest stage in their post-Seattle careers.