The draft order is determined based on the previous season's standings, with the team possessing the worst record receiving the first pick.
[2] In addition, teams that lost free agents in the previous off-season may be awarded compensatory or supplementary picks.
Ken Griffey Jr. was inducted in 2016, having received an all-time record of 99.3% of the possible votes from the Baseball Writers' Association of America.
[5] Two of the Mariners' first-round selections, Alex Rodriguez and Griffey, are members of the 500 home run club.
[4] The Mariners have made eight selections in the supplemental round of the draft and 11 compensatory picks over their history.