| SP | Arrieta, J.Arrieta, Jake >> | 29 | 2015 | R | 95 | 24 | 24 | 8 | 10 | 4.53 | .307 | 1.30 | 8.8 | 2.9 | 9.2 | 167.0 | 164 | 84 | 84 | 16 | 53 | 171 | 4 | 0 | 0 | 1 | 10 | 5 | 2 | 3.24 |
| SP | Perez, P.Perez, Pascual † >> | 31 | 1988 | R | 77 | 23 | 23 | 11 | 6 | 4.00 | .307 | 1.31 | 8.7 | 3.1 | 6.3 | 166.1 | 161 | 76 | 74 | 16 | 57 | 116 | 5 | 0 | 0 | 0 | 14 | 3 | 5 | 3.94 |
| SP | Hudson, D.Hudson, Daniel >> | 23 | 2010 | R | 71 | 23 | 23 | 6 | 8 | 5.06 | .338 | 1.49 | 9.4 | 4.1 | 5.3 | 133.1 | 139 | 81 | 75 | 16 | 60 | 79 | 0 | 0 | 0 | 0 | 10 | 5 | 5 | 4.84 |
| SP | Valenzuela, F.Valenzuela, Fernando >> | 21 | 1981 | L | 59 | 23 | 23 | 8 | 10 | 5.06 | .322 | 1.38 | 8.6 | 3.8 | 6.6 | 154.2 | 148 | 88 | 87 | 25 | 65 | 113 | 6 | 0 | 0 | 2 | 8 | 7 | 3 | 5.05 |
| SP | Lincecum, T.Lincecum, Tim # >> | 25 | 2009 | R | 57 | 22 | 22 | 9 | 9 | 5.31 | .310 | 1.30 | 8.8 | 2.9 | 9.7 | 145.2 | 142 | 87 | 86 | 20 | 47 | 156 | 2 | 0 | 0 | 0 | 9 | 7 | 8 | 3.76 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 78 | 44 | 0 | 3 | 2 | 4.66 | .306 | 1.32 | 8.3 | 3.8 | 9.8 | 48.1 | 44 | 27 | 25 | 6 | 20 | 52 | 0 | 3 | 0 | 0 | 0 | 0 | 3 | 3.71 |
| RP | Rhodes, A.Rhodes, Arthur >> | 32 | 2001 | L | 61 | 66 | 0 | 1 | 0 | 2.84 | .283 | 1.18 | 7.6 | 3.2 | 8.8 | 50.2 | 42 | 18 | 16 | 6 | 18 | 49 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | 3.68 |
| RP | Russell, J.Russell, Jeff >> | 28 | 1989 | R | 50 | 34 | 0 | 3 | 3 | 3.95 | .349 | 1.57 | 7.7 | 6.7 | 9.0 | 27.1 | 23 | 14 | 12 | 5 | 20 | 27 | 0 | 4 | 5 | 0 | 0 | 1 | 2 | 5.74 |
| SP | Garrelts, S.Garrelts, Scott >> | 28 | 1989 | R | 50 | 12 | 0 | 2 | 0 | 4.58 | .303 | 1.30 | 10.1 | 2.1 | 6.9 | 17.2 | 19 | 9 | 9 | 0 | 4 | 13 | 0 | 5 | 0 | 0 | 0 | 0 | 1 | 2.18 |