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| Year | Tier | |||||||||||||||||
| 2001 | A | |||||||||||||||||
| 2001 Seattle Mariners | Top | |||||||||||||||||
| Points Awarded | New | Last 5 Season Finishes | ||||||||||||||||
| Season | DH | YrSet | Tier | Lg | W | L | Fin | Tie | Season | Total | Last 10Yr | Movement | Tier | 1 | 2 | 3 | 4 | 5 |
| 1 | DH | MEra | X | 0 | 0 | X | ||||||||||||
| 2 | no DH | 1995 | P | 1 | 97 | 53 | 1 | 0 | 0 | 0 | Played into PL | E | ||||||
| 3 | DH | 2015 | E | 1 | 80 | 70 | 3 | 170 | 170 | 170 | Promoted | D | P1 | |||||
| 4 | no DH | 1910 | D | 2 | 78 | 72 | 8 | T | 180 | 350 | 350 | D | E3 | P1 | ||||
| 5 | DH | 2021 | D | 3 | 83 | 67 | 2 | T | 264 | 614 | 614 | Promoted | C | D8 | E3 | P1 | ||
| 6 | DH | 1971 | C | 1 | 92 | 58 | 1 | 405 | 1019 | 1019 | Double Promoted | A | D2 | D8 | E3 | P1 | ||
| 7 | DH | 2005 | A | 1 | 78 | 72 | 6 | 495 | 1514 | 1514 | Relegated | B | C1 | D2 | D8 | E3 | P1 | |
| 8 | no DH | 1999 | B | 2 | 83 | 67 | 4 | 434 | 1948 | 1948 | Promoted | A | A6 | C1 | D2 | D8 | E3 | |