Between 2002 and 2021, the Seattle Mariners had their best winning percentage in a season in 2003 and in 2002, winning 57.4 percent of the time.
| TEAM | W% | SEASON | W | L | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Mariners | .574 | 2003 | 93 | 69 | 162 | 5,561 | 795 | 1,509 | 290 | 33 | 139 | 759 | 586 | 53 | 989 | 108 | 37 | 6,281 | 2,282 | 462 | 35 | 46 | 34 | 130 | .271 | .344 | .410 | .754 |
| 2 | | Mariners | .574 | 2002 | 93 | 69 | 162 | 5,569 | 814 | 1,531 | 285 | 31 | 152 | 771 | 629 | 51 | 1,003 | 137 | 58 | 6,362 | 2,334 | 468 | 41 | 72 | 62 | 123 | .275 | .350 | .419 | .769 |
| 3 | | Mariners | .556 | 2021 | 90 | 72 | 162 | 5,355 | 697 | 1,209 | 233 | 11 | 199 | 673 | 535 | 72 | 1,492 | 64 | 24 | 6,007 | 2,061 | 443 | 9 | 36 | 8 | 92 | .226 | .303 | .385 | .688 |
| 4 | | Mariners | .549 | 2018 | 89 | 73 | 162 | 5,513 | 677 | 1,402 | 256 | 32 | 176 | 644 | 430 | 70 | 1,221 | 79 | 37 | 6,083 | 2,250 | 464 | 29 | 41 | 17 | 128 | .254 | .314 | .408 | .722 |
| 5 | | Mariners | .543 | 2007 | 88 | 74 | 162 | 5,684 | 794 | 1,629 | 284 | 22 | 153 | 754 | 389 | 62 | 861 | 81 | 30 | 6,208 | 2,416 | 459 | 33 | 40 | 32 | 154 | .287 | .337 | .425 | .762 |
| 6 | | Mariners | .537 | 2014 | 87 | 75 | 162 | 5,450 | 634 | 1,328 | 247 | 32 | 136 | 600 | 396 | 60 | 1,232 | 96 | 42 | 5,975 | 2,047 | 415 | 35 | 34 | 33 | 112 | .244 | .300 | .376 | .676 |
| 7 | | Mariners | .531 | 2016 | 86 | 76 | 162 | 5,583 | 768 | 1,446 | 251 | 17 | 223 | 735 | 506 | 72 | 1,288 | 56 | 28 | 6,226 | 2,400 | 491 | 24 | 41 | 29 | 138 | .259 | .326 | .430 | .756 |
| 8 | | Mariners | .525 | 2009 | 85 | 77 | 162 | 5,543 | 640 | 1,430 | 280 | 19 | 160 | 613 | 421 | 49 | 1,093 | 89 | 33 | 6,113 | 2,228 | 459 | 56 | 44 | 39 | 124 | .258 | .314 | .402 | .716 |
| 9 | | Mariners | .481 | 2017 | 78 | 84 | 162 | 5,551 | 750 | 1,436 | 281 | 17 | 200 | 714 | 487 | 78 | 1,267 | 89 | 35 | 6,165 | 2,351 | 498 | 14 | 35 | 31 | 131 | .259 | .325 | .424 | .749 |
| 10 | | Mariners | .481 | 2006 | 78 | 84 | 162 | 5,670 | 756 | 1,540 | 266 | 42 | 172 | 703 | 404 | 63 | 974 | 106 | 37 | 6,213 | 2,406 | 480 | 38 | 38 | 49 | 117 | .272 | .325 | .424 | .749 |
| 11 | | Mariners | .469 | 2015 | 76 | 86 | 162 | 5,544 | 656 | 1,379 | 262 | 22 | 198 | 624 | 478 | 36 | 1,336 | 69 | 45 | 6,131 | 2,279 | 482 | 38 | 35 | 31 | 123 | .249 | .311 | .411 | .722 |
| 12 | | Mariners | .463 | 2012 | 75 | 87 | 162 | 5,494 | 619 | 1,285 | 241 | 27 | 149 | 584 | 466 | 30 | 1,259 | 104 | 35 | 6,057 | 2,027 | 417 | 32 | 35 | 21 | 95 | .234 | .296 | .369 | .665 |
| 13 | | Mariners | .450 | 2020 | 27 | 33 | 60 | 1,929 | 254 | 435 | 88 | 5 | 60 | 244 | 207 | 30 | 545 | 50 | 16 | 2,181 | 713 | 153 | 3 | 12 | 5 | 35 | .226 | .309 | .370 | .678 |
| 14 | | Mariners | .438 | 2013 | 71 | 91 | 162 | 5,558 | 624 | 1,318 | 249 | 17 | 188 | 597 | 529 | 31 | 1,353 | 49 | 23 | 6,172 | 2,165 | 454 | 26 | 28 | 21 | 122 | .237 | .306 | .390 | .695 |
| 15 | | Mariners | .426 | 2005 | 69 | 93 | 162 | 5,507 | 699 | 1,408 | 289 | 34 | 130 | 657 | 466 | 48 | 986 | 102 | 47 | 6,095 | 2,155 | 453 | 37 | 37 | 50 | 115 | .256 | .317 | .391 | .709 |
| 16 | | Mariners | .420 | 2019 | 68 | 94 | 162 | 5,500 | 758 | 1,305 | 254 | 28 | 239 | 730 | 588 | 58 | 1,581 | 115 | 47 | 6,197 | 2,332 | 521 | 14 | 37 | 7 | 83 | .237 | .316 | .424 | .740 |
| 17 | | Mariners | .414 | 2011 | 67 | 95 | 162 | 5,421 | 556 | 1,263 | 253 | 22 | 109 | 534 | 435 | 37 | 1,280 | 125 | 40 | 5,972 | 1,887 | 384 | 38 | 41 | 33 | 82 | .233 | .292 | .348 | .640 |
| 18 | | Mariners | .389 | 2004 | 63 | 99 | 162 | 5,722 | 698 | 1,544 | 276 | 20 | 136 | 658 | 492 | 54 | 1,058 | 110 | 42 | 6,362 | 2,268 | 432 | 46 | 48 | 49 | 131 | .270 | .331 | .396 | .727 |
| 19 | | Mariners | .377 | 2010 | 61 | 101 | 162 | 5,409 | 513 | 1,274 | 227 | 16 | 101 | 485 | 459 | 39 | 1,184 | 142 | 39 | 5,989 | 1,836 | 344 | 42 | 40 | 33 | 110 | .236 | .298 | .339 | .637 |
| 20 | | Mariners | .377 | 2008 | 61 | 101 | 162 | 5,643 | 671 | 1,498 | 285 | 20 | 124 | 631 | 417 | 38 | 890 | 90 | 32 | 6,176 | 2,195 | 429 | 36 | 42 | 44 | 137 | .265 | .318 | .389 | .707 |
More MLB News
Gavin Sheets' pinch-hit homer propels dominant Padres past Cubs 4-1 for 2-game Wild Card sweep
Red Sox ace Sonny Gray frustrated by lack of trust from manager during Yankees rout
Fried, Bellinger and GarcÃa lead Yankees over Red Sox 9-2 for 2-game Wild Card Series sweep
Bohm's homer in 10th lifts Phillies over Braves to force decisive Game 3
White Sox pounce early, finish sweep of Astros for first playoff series win since 2005
Padres' Ethan Salas becomes MLB's youngest postseason catcher in Game 2 vs. Cubs
More Mariners Stats
Team Batting Leaders 
HR
26
Arozarena
RBI
79
Arozarena
AVG
.281
Arozarena
Team Pitching Leaders 
W
12
Woo
K
205
Gilbert
ERA
3.57
Hancock
Team Rankings
HR
182
16th
R
664
28th
SO
1,392
12th
ERA
4.20
19th
Rangers
Mariners
Athletics
Angels
MLB 2026 Batting Leaders
MLB 2026 Pitching Leaders
MLB Fantasy 2026
MLB 2026 Betting
MLB 2026 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
 Braves - y | 94 | 68 | .580 | |
 Phillies - w | 88 | 74 | .543 | 6.0 |
80 | 82 | .494 | 14.0 | |
77 | 85 | .475 | 17.0 | |
74 | 88 | .457 | 20.0 | |
| NL Central | W | L | PCT | GB |
 Brewers - y | 103 | 59 | .636 | |
 Cubs - w | 89 | 73 | .549 | 14.0 |
82 | 80 | .506 | 21.0 | |
77 | 85 | .475 | 26.0 | |
75 | 87 | .463 | 28.0 | |
| NL West | W | L | PCT | GB |
 Dodgers - y | 100 | 62 | .617 | |
 Padres - w | 91 | 71 | .562 | 9.0 |
86 | 76 | .531 | 14.0 | |
65 | 97 | .401 | 35.0 | |
58 | 104 | .358 | 42.0 |
Marlins
Nationals
Mets
Pirates
Cardinals
Reds
Diamondbacks
Giants
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
 Rays - y | 98 | 64 | .605 | |
 Yankees - w | 93 | 68 | .578 | 4.5 |
 Red Sox - w | 87 | 75 | .537 | 11.0 |
79 | 82 | .491 | 18.5 | |
79 | 83 | .488 | 19.0 | |
| AL Central | W | L | PCT | GB |
 Guardians - y | 85 | 77 | .525 | |
 White Sox - w | 84 | 78 | .519 | 1.0 |
77 | 85 | .475 | 8.0 | |
76 | 86 | .469 | 9.0 | |
69 | 93 | .426 | 16.0 | |
| AL West | W | L | PCT | GB |
 Astros - y | 81 | 81 | .500 | |
80 | 82 | .494 | 1.0 | |
76 | 86 | .469 | 5.0 | |
64 | 98 | .395 | 17.0 | |
62 | 100 | .383 | 19.0 |
Orioles
Blue Jays
Twins
Tigers
Royals