| | | | | | | | | | ARI | ATL | BAL | BOS | CHA | CHN | CIN | CLE | COL | DET | FLO | HOU | KCA | LAA | LAN | | MIL | MIN | NYA | NYN | OAK | PHI | PIT | SDN | SFN | SEA | SLN | TBA | TEX | TOR | WAS | | Team Index | Draft History | Starters: Positional - Pitchers | Registers: Batters - Pitchers | Leaders: Batters - Pitchers |  | Seattle Mariners Pitching Staff Chart |
| | Year | Starting Pitchers | Closer | Bullpen | | 2010 71-91 | Lilly
14-11, 3.55 | Gallardo
7-14, 4.37 | Danks
11-10, 4.32 | Wolf
7-7, 4.17 | Padilla
7-9, 5.34 | Downs
33 SV, 1.98 | Daley
67 G, 3.43 | Hawksworth
67 G, 3.04 | Downs
60 G, 1.98 | | 2011 81-81 | Lilly
13-16, 4.74 | Harang
13-10, 4.18 | Gallardo
7-14, 4.86 | Danks
8-11, 3.99 | Laffey
8-8, 4.95 | Downs
33 SV, 2.07 | Daley
70 G, 2.93 | Hawksworth
67 G, 2.93 | Downs
61 G, 2.07 | | 2012 103-59 | Laffey
20-8, 2.23 | Lilly
17-14, 3.75 | Harang
13-11, 4.34 | Gallardo
12-10, 3.21 | Moser
9-5, 3.30 | Downs
40 SV, 2.70 | Gray
68 G, 3.30 | Marmol
64 G, 3.12 | Downs
60 G, 2.70 | | 2013 98-64 | Harang
23-7, 2.91 | Laffey
13-9, 3.15 | Moser
11-15, 4.83 | Lilly
15-10, 2.88 | Gallardo
7-8, 6.16 | Downs
45 SV, 2.13 | Downs
72 G, 2.13 | Daley
62 G, 1.91 | Gray
62 G, 6.30 | | 2014 78-84 | Harang
8-13, 5.42 | Laffey
14-14, 2.77 | Garcia
8-12, 6.08 | Lilly
10-9, 5.62 | Gallardo
1-7, 5.88 | Downs
27 SV, 4.57 | Gray
72 G, 2.61 | Downs
67 G, 4.57 | Marmol
66 G, 3.61 | | 2015 79-83 | Harang
10-20, 6.39 | Laffey
18-6, 2.52 | Weaver
15-8, 3.54 | Garcia
1-13, 8.06 | Henderson
2-9, 5.64 | Gray
28 SV, 3.82 | Downs
66 G, 4.62 | Hayhurst
61 G, 3.81 | Gray
58 G, 3.82 | | 2016 70-92 | Henderson
10-13, 5.35 | Laffey
11-10, 3.26 | Lynch
9-14, 5.23 | Harang
7-11, 4.81 | Córdova
7-8, 6.44 | Kelley
29 SV, 4.37 | Kelley
67 G, 4.37 | Downs
64 G, 4.57 | Boyer
62 G, 4.85 | | 2017 0-0 | | | | | | | | | | | | Top 5 pitchers in Games Started, Top pitcher in Saves and Top 3 pitchers in Games | |
