The Seattle Mariners finished 4th in the AL West in 2015 with a record of 76-86, 12 games out of first place.
AL East
| TEAM | W | L | PCT | GB | HOME | ROAD | L10 | STRK | |
|---|---|---|---|---|---|---|---|---|---|
 | y-Blue Jays | 93 | 69 | .574 | 0.0 | 53-28 | 40-41 | 6-4 | L2 |
 | w-Yankees | 87 | 75 | .537 | 6.0 | 45-36 | 42-39 | 3-7 | L3 |
 | Orioles | 81 | 81 | .500 | 12.0 | 49-32 | 32-49 | 5-5 | W4 |
 | Rays | 80 | 82 | .494 | 13.0 | 41-40 | 39-42 | 6-4 | W2 |
 | Red Sox | 78 | 84 | .481 | 15.0 | 43-38 | 35-46 | 6-4 | L4 |
NL Central
| TEAM | W | L | PCT | GB | HOME | ROAD | L10 | STRK | |
|---|---|---|---|---|---|---|---|---|---|
 | y-Cardinals | 100 | 62 | .617 | 0.0 | 55-26 | 45-36 | 4-6 | L3 |
 | w-Pirates | 98 | 64 | .605 | 2.0 | 53-28 | 45-36 | 6-4 | W1 |
 | w-Cubs | 97 | 65 | .599 | 3.0 | 49-32 | 48-33 | 8-2 | W8 |
 | Brewers | 68 | 94 | .420 | 32.0 | 34-47 | 34-47 | 4-6 | L4 |
 | Reds | 64 | 98 | .395 | 36.0 | 34-47 | 30-51 | 1-9 | L1 |
NL West
| TEAM | W | L | PCT | GB | HOME | ROAD | L10 | STRK | |
|---|---|---|---|---|---|---|---|---|---|
 | y-Dodgers | 92 | 70 | .568 | 0.0 | 55-26 | 37-44 | 5-5 | W4 |
 | Giants | 84 | 78 | .519 | 8.0 | 47-34 | 37-44 | 5-5 | L1 |
 | Diamondbacks | 79 | 83 | .488 | 13.0 | 39-42 | 40-41 | 6-4 | W1 |
 | Padres | 74 | 88 | .457 | 18.0 | 39-42 | 35-46 | 3-7 | L3 |
 | Rockies | 68 | 94 | .420 | 24.0 | 36-45 | 32-49 | 5-5 | W1 |
y - clinched division
w - clinched wild card
x - clinched playoff berth
Mariners 
Astros 
Rangers 
Angels 
Athletics 
MIN 
BAL 
Yankees 
Rays 
Tigers 
Guardians 
Phillies 
Mets 
Cubs 
Cardinals 
Dodgers 
Padres 
CIN 
MIL 
CWS 
TOR 
COL 
