League pitching register -- American League
Regular season -- as of 4/30/1979
| Primary |
| Name | Team | ERA | W | L | S | Pct. | G | GS | CG | SHO | S | INN | H | R | ER | BB | SO | HR | GDP | AVG | WHIP |
| Don Aase | Cal | 6.04 | 2 | 3 | 0 | .400 | 5 | 5 | 0 | 0 | 0 | 28.1 | 34 | 25 | 19 | 17 | 14 | 5 | 6 | .293 | 1.80 |
| Glenn Abbott | Sea | 5.83 | 0 | 2 | 0 | .000 | 5 | 5 | 0 | 0 | 0 | 29.1 | 36 | 24 | 19 | 12 | 6 | 5 | 4 | .298 | 1.64 |
| Doyle Alexander | Tex | 3.90 | 1 | 0 | 0 | 1.000 | 5 | 5 | 0 | 0 | 0 | 30.0 | 32 | 14 | 13 | 13 | 7 | 1 | 4 | .281 | 1.50 |
| Jerry Augustine* | Mil | 2.31 | 2 | 0 | 0 | 1.000 | 4 | 1 | 0 | 0 | 0 | 11.2 | 10 | 3 | 3 | 4 | 4 | 0 | 1 | .222 | 1.20 |
| Steve Baker | Det | 5.40 | 0 | 1 | 1 | .000 | 5 | 1 | 0 | 0 | 1 | 13.1 | 18 | 8 | 8 | 6 | 9 | 3 | 0 | .333 | 1.80 |
| Floyd Bannister* | Sea | 2.95 | 3 | 2 | 0 | .600 | 5 | 5 | 2 | 0 | 0 | 36.2 | 30 | 12 | 12 | 11 | 29 | 5 | 3 | .222 | 1.12 |
| Len Barker | Cle | 3.86 | 2 | 1 | 1 | .667 | 7 | 0 | 0 | 0 | 1 | 18.2 | 21 | 9 | 8 | 9 | 10 | 0 | 3 | .300 | 1.61 |
| Mike Barlow | Cal | 2.70 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 0 | 0 | 3.1 | 2 | 1 | 1 | 2 | 2 | 1 | 0 | .167 | 1.20 |
| Jim Barr | Cal | 4.15 | 0 | 0 | 0 | .000 | 7 | 1 | 0 | 0 | 0 | 21.2 | 25 | 11 | 10 | 7 | 4 | 3 | 2 | .287 | 1.48 |
| Francisco Barrios | ChA | 3.38 | 0 | 0 | 0 | .000 | 3 | 3 | 0 | 0 | 0 | 21.1 | 16 | 11 | 8 | 12 | 6 | 1 | 1 | .213 | 1.31 |
| Ross Baumgarten* | ChA | 6.30 | 2 | 1 | 0 | .667 | 3 | 3 | 0 | 0 | 0 | 20.0 | 23 | 14 | 14 | 7 | 8 | 4 | 3 | .295 | 1.50 |
| Jack Billingham | Det | 6.75 | 2 | 2 | 0 | .500 | 4 | 4 | 0 | 0 | 0 | 21.1 | 24 | 16 | 16 | 12 | 11 | 0 | 6 | .293 | 1.69 |
| Ken Brett* | Min | 0.00 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | .167 | 1.00 |
| Tom Burgmeier* | Bos | 0.87 | 0 | 1 | 1 | .000 | 6 | 0 | 0 | 0 | 1 | 10.1 | 8 | 1 | 1 | 1 | 9 | 0 | 1 | .216 | 0.87 |
| Sheldon Burnside* | Det | 4.05 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 0 | 0 | 13.1 | 13 | 9 | 6 | 3 | 11 | 1 | 2 | .255 | 1.20 |
| Steve Busby | KC | 4.15 | 1 | 2 | 0 | .333 | 7 | 0 | 0 | 0 | 0 | 13.0 | 10 | 6 | 6 | 9 | 6 | 1 | 1 | .213 | 1.46 |
| Mike Caldwell* | Mil | 3.15 | 3 | 2 | 0 | .600 | 5 | 5 | 3 | 0 | 0 | 40.0 | 43 | 14 | 14 | 9 | 12 | 1 | 7 | .287 | 1.30 |
| Bill Campbell | Bos | 2.53 | 2 | 0 | 1 | 1.000 | 7 | 0 | 0 | 0 | 1 | 10.2 | 8 | 3 | 3 | 3 | 5 | 1 | 0 | .211 | 1.03 |
| Bill Castro | Mil | 4.76 | 1 | 1 | 0 | .500 | 7 | 0 | 0 | 0 | 0 | 5.2 | 8 | 3 | 3 | 1 | 2 | 1 | 0 | .320 | 1.59 |
| Jim Clancy | Tor | 5.40 | 0 | 2 | 0 | .000 | 5 | 5 | 0 | 0 | 0 | 30.0 | 39 | 20 | 18 | 16 | 12 | 3 | 7 | .328 | 1.83 |
| Ken Clay | NYA | 3.68 | 0 | 2 | 0 | .000 | 8 | 0 | 0 | 0 | 0 | 14.2 | 14 | 6 | 6 | 4 | 6 | 3 | 2 | .259 | 1.23 |
| Mark Clear | Cal | 11.08 | 1 | 2 | 0 | .333 | 11 | 0 | 0 | 0 | 0 | 13.0 | 22 | 17 | 16 | 8 | 10 | 2 | 0 | .361 | 2.31 |
| Reggie Cleveland | Mil | 2.25 | 0 | 0 | 1 | .000 | 6 | 0 | 0 | 0 | 1 | 8.0 | 7 | 2 | 2 | 3 | 6 | 0 | 1 | .226 | 1.25 |
| Steve Comer | Tex | 3.82 | 1 | 1 | 0 | .500 | 5 | 5 | 0 | 0 | 0 | 37.2 | 25 | 16 | 16 | 10 | 12 | 4 | 2 | .189 | 0.93 |
| Victor Cruz | Cle | 1.17 | 2 | 0 | 0 | 1.000 | 11 | 0 | 0 | 0 | 0 | 15.1 | 11 | 3 | 2 | 9 | 16 | 0 | 2 | .200 | 1.30 |
| Ron Davis | NYA | 16.20 | 0 | 1 | 0 | .000 | 2 | 0 | 0 | 0 | 0 | 1.2 | 2 | 3 | 3 | 2 | 0 | 1 | 2 | .400 | 2.40 |
| Dick Drago | Bos | 2.30 | 1 | 1 | 3 | .500 | 11 | 0 | 0 | 0 | 3 | 15.2 | 11 | 4 | 4 | 3 | 10 | 2 | 3 | .204 | 0.89 |
| Dennis Eckersley | Bos | 3.40 | 4 | 0 | 0 | 1.000 | 5 | 5 | 3 | 0 | 0 | 39.2 | 30 | 16 | 15 | 4 | 23 | 4 | 0 | .204 | 0.86 |
| Dock Ellis | Tex | 7.24 | 0 | 2 | 0 | .000 | 3 | 3 | 0 | 0 | 0 | 13.2 | 21 | 12 | 11 | 8 | 5 | 3 | 0 | .350 | 2.12 |
| Roger Erickson | Min | 4.18 | 3 | 0 | 0 | 1.000 | 5 | 4 | 0 | 0 | 0 | 28.0 | 27 | 17 | 13 | 11 | 15 | 2 | 2 | .252 | 1.36 |
| Ed Farmer | Tex | 5.59 | 0 | 1 | 1 | .000 | 7 | 0 | 0 | 0 | 1 | 9.2 | 7 | 7 | 6 | 9 | 8 | 1 | 2 | .206 | 1.66 |
| Ed Figueroa | NYA | 3.25 | 3 | 1 | 0 | .750 | 6 | 6 | 0 | 0 | 0 | 36.0 | 32 | 14 | 13 | 13 | 17 | 3 | 1 | .232 | 1.25 |
| Mike Flanagan* | Bal | 1.66 | 2 | 0 | 0 | 1.000 | 5 | 5 | 1 | 1 | 0 | 38.0 | 36 | 9 | 7 | 7 | 29 | 3 | 6 | .250 | 1.13 |
| Dave Freisleben | Tor | 4.40 | 0 | 1 | 0 | .000 | 9 | 0 | 0 | 0 | 0 | 14.1 | 14 | 7 | 7 | 9 | 6 | 0 | 2 | .264 | 1.60 |
| Dave Frost | Cal | 6.00 | 0 | 2 | 2 | .000 | 5 | 2 | 0 | 0 | 2 | 15.0 | 13 | 15 | 10 | 7 | 3 | 2 | 1 | .220 | 1.33 |
| Bob Galasso | Mil | 1.50 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 0 | 0 | 6.0 | 7 | 4 | 1 | 4 | 3 | 0 | 0 | .280 | 1.83 |
| Rich Gale | KC | 5.83 | 2 | 2 | 0 | .500 | 5 | 5 | 1 | 1 | 0 | 29.1 | 31 | 19 | 19 | 17 | 13 | 2 | 2 | .277 | 1.64 |
| Wayne Garland | Cle | 15.63 | 0 | 0 | 0 | .000 | 2 | 2 | 0 | 0 | 0 | 6.1 | 16 | 13 | 11 | 4 | 5 | 1 | 1 | .457 | 3.16 |
| Dave Goltz | Min | 4.96 | 2 | 2 | 0 | .500 | 5 | 5 | 2 | 0 | 0 | 32.2 | 44 | 19 | 18 | 5 | 16 | 1 | 7 | .331 | 1.50 |
| Rich Gossage | NYA | 5.00 | 0 | 0 | 1 | .000 | 6 | 0 | 0 | 0 | 1 | 9.0 | 7 | 5 | 5 | 6 | 8 | 0 | 1 | .226 | 1.44 |
| Ron Guidry* | NYA | 3.58 | 1 | 4 | 0 | .200 | 5 | 5 | 3 | 0 | 0 | 37.2 | 32 | 15 | 15 | 15 | 27 | 3 | 4 | .227 | 1.25 |
| Larry Gura* | KC | 4.54 | 1 | 2 | 0 | .333 | 6 | 6 | 1 | 0 | 0 | 41.2 | 38 | 21 | 21 | 13 | 20 | 6 | 4 | .244 | 1.22 |
| Moose Haas | Mil | 5.19 | 1 | 1 | 0 | .500 | 3 | 3 | 0 | 0 | 0 | 17.1 | 24 | 10 | 10 | 5 | 9 | 3 | 1 | .316 | 1.67 |
| Dave Hamilton* | Oak | 6.43 | 0 | 0 | 1 | .000 | 10 | 0 | 0 | 0 | 1 | 14.0 | 18 | 13 | 10 | 6 | 10 | 2 | 1 | .316 | 1.71 |
| Paul Hartzell | Min | 5.92 | 3 | 1 | 0 | .750 | 4 | 4 | 0 | 0 | 0 | 24.1 | 23 | 16 | 16 | 9 | 5 | 3 | 2 | .253 | 1.32 |
| Andy Hassler* | Bos | 3.38 | 1 | 0 | 0 | 1.000 | 4 | 0 | 0 | 0 | 0 | 5.1 | 5 | 3 | 2 | 3 | 3 | 0 | 0 | .238 | 1.50 |
| Dave Heaverlo | Oak | 3.14 | 0 | 0 | 3 | .000 | 11 | 0 | 0 | 0 | 3 | 14.1 | 21 | 10 | 5 | 5 | 9 | 1 | 1 | .333 | 1.81 |
| John Hiller* | Det | 6.94 | 1 | 2 | 3 | .333 | 8 | 0 | 0 | 0 | 3 | 11.2 | 10 | 9 | 9 | 5 | 11 | 0 | 0 | .222 | 1.29 |
| Jeff Holly* | Min | 1.59 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 0 | 0 | 5.2 | 4 | 1 | 1 | 1 | 4 | 1 | 0 | .190 | 0.88 |
| Rick Honeycutt* | Sea | 1.95 | 2 | 0 | 1 | 1.000 | 6 | 2 | 1 | 0 | 1 | 27.2 | 24 | 7 | 6 | 6 | 13 | 0 | 5 | .235 | 1.08 |
| Don Hood* | Cle | 1.84 | 0 | 0 | 1 | .000 | 8 | 0 | 0 | 0 | 1 | 14.2 | 7 | 3 | 3 | 9 | 9 | 0 | 0 | .137 | 1.09 |
| Al Hrabosky* | KC | 0.00 | 1 | 0 | 1 | 1.000 | 6 | 0 | 0 | 0 | 1 | 11.0 | 9 | 0 | 0 | 5 | 5 | 0 | 1 | .225 | 1.27 |
| Phil Huffman | Tor | 6.86 | 1 | 3 | 0 | .250 | 4 | 4 | 0 | 0 | 0 | 19.2 | 28 | 16 | 15 | 8 | 8 | 2 | 0 | .329 | 1.83 |
| Jim Hunter | NYA | 8.15 | 0 | 2 | 0 | .000 | 3 | 3 | 0 | 0 | 0 | 17.2 | 25 | 16 | 16 | 5 | 2 | 4 | 2 | .338 | 1.70 |
| Jesse Jefferson | Tor | 7.71 | 1 | 0 | 0 | 1.000 | 7 | 0 | 0 | 0 | 0 | 11.2 | 19 | 10 | 10 | 4 | 3 | 0 | 5 | .388 | 1.97 |
| Ferguson Jenkins | Tex | 2.27 | 6 | 0 | 0 | 1.000 | 6 | 6 | 2 | 2 | 0 | 43.2 | 31 | 12 | 11 | 16 | 22 | 2 | 7 | .205 | 1.08 |
| Tommy John* | NYA | 2.89 | 1 | 3 | 0 | .250 | 5 | 5 | 2 | 0 | 0 | 37.1 | 38 | 14 | 12 | 4 | 25 | 4 | 2 | .264 | 1.13 |
| John Henry Johnson* | Oak | 3.82 | 3 | 2 | 0 | .600 | 5 | 5 | 0 | 0 | 0 | 33.0 | 30 | 14 | 14 | 13 | 22 | 5 | 2 | .240 | 1.30 |
| Odell Jones | Sea | 5.14 | 1 | 2 | 0 | .333 | 5 | 5 | 1 | 0 | 0 | 28.0 | 37 | 20 | 16 | 7 | 20 | 4 | 6 | .316 | 1.57 |
| Matt Keough | Oak | 3.51 | 0 | 4 | 0 | .000 | 5 | 5 | 0 | 0 | 0 | 33.1 | 37 | 17 | 13 | 13 | 16 | 2 | 4 | .282 | 1.50 |
| Jim Kern | Tex | 7.71 | 2 | 0 | 1 | 1.000 | 9 | 0 | 0 | 0 | 1 | 11.2 | 19 | 10 | 10 | 4 | 16 | 3 | 1 | .365 | 1.97 |
| Chris Knapp | Cal | 6.59 | 1 | 4 | 0 | .200 | 5 | 5 | 1 | 0 | 0 | 28.2 | 37 | 25 | 21 | 9 | 13 | 3 | 3 | .316 | 1.60 |
| Jerry Koosman* | Min | 5.26 | 1 | 1 | 0 | .500 | 4 | 4 | 1 | 0 | 0 | 25.2 | 25 | 15 | 15 | 8 | 15 | 3 | 2 | .248 | 1.29 |
| Ken Kravec* | ChA | 1.66 | 2 | 1 | 0 | .667 | 5 | 5 | 0 | 0 | 0 | 38.0 | 27 | 10 | 7 | 16 | 17 | 1 | 4 | .205 | 1.13 |
| Jack Kucek | ChA | 13.50 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 0 | 0 | 0.2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | .500 | 4.50 |
| Bob Lacey* | Oak | 9.00 | 1 | 2 | 1 | .333 | 10 | 0 | 0 | 0 | 1 | 8.0 | 14 | 9 | 8 | 4 | 6 | 1 | 0 | .389 | 2.25 |
| Lerrin LaGrow | ChA | 7.53 | 0 | 0 | 1 | .000 | 5 | 2 | 0 | 0 | 1 | 14.1 | 14 | 12 | 12 | 11 | 5 | 0 | 2 | .255 | 1.74 |
| Rick Langford | Oak | 2.52 | 2 | 2 | 0 | .500 | 5 | 5 | 1 | 0 | 0 | 35.2 | 36 | 12 | 10 | 10 | 23 | 1 | 1 | .254 | 1.29 |
| Dave LaRoche* | Cal | 4.41 | 1 | 0 | 1 | 1.000 | 12 | 0 | 0 | 0 | 1 | 16.1 | 19 | 9 | 8 | 4 | 20 | 3 | 0 | .279 | 1.41 |
| Dave Lemanczyk | Tor | 5.66 | 1 | 1 | 0 | .500 | 3 | 3 | 1 | 0 | 0 | 20.2 | 22 | 16 | 13 | 9 | 11 | 2 | 1 | .278 | 1.50 |
| Mark Lemongello | Tor | 6.53 | 0 | 4 | 0 | .000 | 5 | 5 | 1 | 0 | 0 | 30.1 | 40 | 24 | 22 | 10 | 16 | 9 | 5 | .320 | 1.65 |
| Dennis Leonard | KC | 4.33 | 2 | 0 | 0 | 1.000 | 5 | 5 | 2 | 0 | 0 | 35.1 | 38 | 17 | 17 | 11 | 22 | 1 | 2 | .273 | 1.39 |
| Aurelio Lopez | Det | 2.65 | 1 | 0 | 1 | 1.000 | 8 | 0 | 0 | 0 | 1 | 17.0 | 10 | 7 | 5 | 8 | 15 | 1 | 0 | .164 | 1.06 |
| Sparky Lyle* | Tex | 0.69 | 1 | 1 | 3 | .500 | 10 | 0 | 0 | 0 | 3 | 13.0 | 10 | 2 | 1 | 4 | 5 | 0 | 3 | .208 | 1.08 |
| Mike Marshall | Min | 1.08 | 1 | 0 | 5 | 1.000 | 9 | 0 | 0 | 0 | 5 | 16.2 | 19 | 6 | 2 | 8 | 10 | 1 | 3 | .288 | 1.62 |
| Dennis Martinez | Bal | 1.95 | 5 | 0 | 0 | 1.000 | 5 | 5 | 2 | 2 | 0 | 37.0 | 32 | 8 | 8 | 9 | 15 | 3 | 1 | .229 | 1.11 |
| Tippy Martinez* | Bal | 2.45 | 1 | 0 | 0 | 1.000 | 8 | 0 | 0 | 0 | 0 | 11.0 | 8 | 3 | 3 | 7 | 12 | 2 | 2 | .205 | 1.36 |
| Steve McCatty | Oak | 9.00 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 0 | 0 | 2.0 | 3 | 2 | 2 | 3 | 0 | 0 | 1 | .375 | 3.00 |
| Bob McClure* | Mil | 2.35 | 0 | 1 | 1 | .000 | 7 | 0 | 0 | 0 | 1 | 7.2 | 4 | 2 | 2 | 3 | 4 | 0 | 1 | .154 | 0.91 |
| Scott McGregor* | Bal | 2.01 | 2 | 0 | 0 | 1.000 | 3 | 2 | 2 | 1 | 0 | 22.1 | 18 | 5 | 5 | 2 | 10 | 0 | 0 | .214 | 0.90 |
| Byron McLaughlin | Sea | 3.00 | 3 | 0 | 0 | 1.000 | 7 | 2 | 0 | 0 | 0 | 18.0 | 12 | 6 | 6 | 8 | 15 | 0 | 1 | .188 | 1.11 |
| Doc Medich | Tex | 2.77 | 0 | 3 | 0 | .000 | 5 | 0 | 0 | 0 | 0 | 13.0 | 11 | 4 | 4 | 7 | 3 | 1 | 1 | .224 | 1.38 |
| Dyar Miller | Cal | 2.70 | 0 | 0 | 1 | .000 | 8 | 0 | 0 | 0 | 1 | 16.2 | 16 | 5 | 5 | 5 | 6 | 2 | 4 | .267 | 1.26 |
| Craig Minetto* | Oak | 8.44 | 0 | 1 | 0 | .000 | 3 | 1 | 0 | 0 | 0 | 10.2 | 14 | 10 | 10 | 9 | 8 | 0 | 1 | .318 | 2.16 |
| Steve Mingori* | KC | 9.72 | 1 | 2 | 0 | .333 | 8 | 0 | 0 | 0 | 0 | 8.1 | 18 | 9 | 9 | 3 | 4 | 2 | 0 | .450 | 2.52 |
| Paul Mirabella* | NYA | 4.50 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 0 | 0 | 6.0 | 2 | 3 | 3 | 4 | 2 | 1 | 2 | .111 | 1.00 |
| Paul Mitchell | Sea | 3.31 | 1 | 0 | 0 | 1.000 | 3 | 3 | 0 | 0 | 0 | 16.1 | 17 | 7 | 6 | 7 | 8 | 2 | 2 | .266 | 1.47 |
| Sid Monge* | Cle | 3.86 | 0 | 2 | 0 | .000 | 9 | 0 | 0 | 0 | 0 | 16.1 | 21 | 8 | 7 | 5 | 8 | 1 | 3 | .328 | 1.59 |
| John Montague | Sea | 9.45 | 1 | 0 | 1 | 1.000 | 9 | 0 | 0 | 0 | 1 | 13.1 | 24 | 14 | 14 | 3 | 8 | 2 | 0 | .393 | 2.02 |
| Balor Moore* | Tor | 6.19 | 1 | 2 | 0 | .333 | 9 | 0 | 0 | 0 | 0 | 16.0 | 19 | 16 | 11 | 13 | 3 | 2 | 3 | .279 | 2.00 |
| Tom Murphy | Tor | 2.57 | 1 | 0 | 0 | 1.000 | 9 | 0 | 0 | 0 | 0 | 14.0 | 17 | 6 | 4 | 8 | 2 | 1 | 2 | .298 | 1.79 |
| Mike Norris | Oak | 8.72 | 0 | 4 | 0 | .000 | 5 | 5 | 0 | 0 | 0 | 21.2 | 28 | 21 | 21 | 17 | 17 | 3 | 2 | .311 | 2.08 |
| Jim Palmer | Bal | 2.25 | 5 | 1 | 0 | .833 | 6 | 6 | 2 | 0 | 0 | 48.0 | 40 | 14 | 12 | 13 | 23 | 3 | 9 | .229 | 1.10 |
| Mike Parrott | Sea | 5.06 | 3 | 1 | 0 | .750 | 6 | 0 | 0 | 0 | 0 | 16.0 | 14 | 10 | 9 | 9 | 10 | 2 | 3 | .230 | 1.44 |
| Marty Pattin | KC | 6.00 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 0 | 0 | 9.0 | 9 | 6 | 6 | 4 | 2 | 2 | 2 | .281 | 1.44 |
| Mike Paxton | Cle | 5.70 | 0 | 2 | 0 | .000 | 4 | 4 | 0 | 0 | 0 | 23.2 | 29 | 15 | 15 | 6 | 9 | 1 | 2 | .296 | 1.48 |
| Mike Proly | ChA | 5.25 | 1 | 6 | 0 | .143 | 11 | 2 | 0 | 0 | 0 | 24.0 | 27 | 18 | 14 | 14 | 15 | 4 | 1 | .276 | 1.71 |
| Chuck Rainey | Bos | 2.40 | 2 | 0 | 0 | 1.000 | 2 | 2 | 1 | 0 | 0 | 15.0 | 12 | 4 | 4 | 4 | 9 | 0 | 2 | .222 | 1.07 |
| Dave Rajsich* | Tex | 0.00 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 0 | 0 | 4.2 | 4 | 3 | 0 | 1 | 3 | 0 | 0 | .211 | 1.07 |
| Shane Rawley* | Sea | 2.12 | 2 | 0 | 2 | 1.000 | 7 | 1 | 0 | 0 | 2 | 17.0 | 18 | 4 | 4 | 1 | 12 | 1 | 3 | .277 | 1.12 |
| Pete Redfern | Min | 3.31 | 2 | 1 | 1 | .667 | 10 | 0 | 0 | 0 | 1 | 16.1 | 25 | 8 | 6 | 4 | 10 | 0 | 4 | .379 | 1.78 |
| Steve Renko | Bos | 4.95 | 1 | 1 | 0 | .500 | 3 | 3 | 0 | 0 | 0 | 20.0 | 21 | 12 | 11 | 7 | 8 | 2 | 1 | .253 | 1.40 |
| Paul Reuschel | Cle | 81.00 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 0 | 0 | 0.1 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | .600 | 9.00 |
| Dewey Robinson | ChA | 1.29 | 1 | 1 | 1 | .500 | 10 | 0 | 0 | 0 | 1 | 14.0 | 7 | 2 | 2 | 6 | 2 | 0 | 1 | .140 | 0.93 |
| Eduardo Rodriguez | KC | 3.15 | 1 | 0 | 2 | 1.000 | 10 | 0 | 0 | 0 | 2 | 20.0 | 13 | 7 | 7 | 10 | 10 | 0 | 0 | .183 | 1.15 |
| Dave Rozema | Det | 5.33 | 2 | 2 | 0 | .500 | 5 | 5 | 1 | 0 | 0 | 27.0 | 36 | 17 | 16 | 7 | 3 | 3 | 8 | .336 | 1.59 |
| Nolan Ryan | Cal | 5.19 | 2 | 2 | 0 | .500 | 5 | 5 | 0 | 0 | 0 | 26.0 | 32 | 20 | 15 | 18 | 24 | 2 | 1 | .291 | 1.92 |
| Randy Scarbery | ChA | 5.65 | 0 | 0 | 1 | .000 | 8 | 0 | 0 | 0 | 1 | 14.1 | 16 | 10 | 9 | 7 | 4 | 3 | 0 | .271 | 1.60 |
| Gary Serum | Min | 9.64 | 0 | 1 | 0 | .000 | 6 | 0 | 0 | 0 | 0 | 9.1 | 15 | 10 | 10 | 1 | 9 | 3 | 2 | .375 | 1.71 |
| Jim Slaton | Mil | 1.82 | 1 | 3 | 0 | .250 | 4 | 4 | 3 | 1 | 0 | 34.2 | 24 | 8 | 7 | 9 | 12 | 1 | 4 | .190 | 0.95 |
| Lary Sorensen | Mil | 3.25 | 2 | 1 | 0 | .667 | 5 | 5 | 2 | 1 | 0 | 36.0 | 39 | 15 | 13 | 6 | 8 | 3 | 7 | .285 | 1.25 |
| Dan Spillner | Cle | 8.10 | 2 | 0 | 1 | 1.000 | 13 | 0 | 0 | 0 | 1 | 16.2 | 18 | 15 | 15 | 12 | 9 | 1 | 1 | .277 | 1.80 |
| Paul Splittorff* | KC | 4.15 | 3 | 1 | 0 | .750 | 5 | 5 | 1 | 1 | 0 | 30.1 | 33 | 18 | 14 | 5 | 12 | 6 | 4 | .275 | 1.25 |
| Don Stanhouse | Bal | 2.79 | 1 | 0 | 4 | 1.000 | 6 | 0 | 0 | 0 | 4 | 9.2 | 12 | 3 | 3 | 4 | 9 | 0 | 3 | .316 | 1.66 |
| Bob Stanley | Bos | 2.20 | 1 | 0 | 0 | 1.000 | 4 | 4 | 1 | 0 | 0 | 28.2 | 30 | 10 | 7 | 4 | 6 | 1 | 5 | .270 | 1.19 |
| Sammy Stewart | Bal | 4.22 | 1 | 0 | 0 | 1.000 | 3 | 1 | 0 | 0 | 0 | 10.2 | 9 | 7 | 5 | 7 | 8 | 3 | 2 | .214 | 1.50 |
| Tim Stoddard | Bal | 5.25 | 1 | 0 | 2 | 1.000 | 7 | 0 | 0 | 0 | 2 | 12.0 | 10 | 7 | 7 | 6 | 12 | 0 | 1 | .217 | 1.33 |
| Steve Stone | Bal | 4.91 | 1 | 3 | 0 | .250 | 4 | 4 | 0 | 0 | 0 | 18.1 | 19 | 14 | 10 | 7 | 14 | 6 | 0 | .257 | 1.42 |
| Frank Tanana* | Cal | 1.97 | 2 | 1 | 0 | .667 | 5 | 5 | 0 | 0 | 0 | 32.0 | 35 | 10 | 7 | 9 | 20 | 0 | 3 | .278 | 1.38 |
| Bruce Taylor | Det | 1.00 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 0 | 0 | 9.0 | 10 | 2 | 1 | 3 | 4 | 0 | 1 | .278 | 1.44 |
| George Throop | KC | 6.75 | 0 | 0 | 0 | .000 | 2 | 0 | 0 | 0 | 0 | 1.1 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | .429 | 2.25 |
| Luis Tiant | NYA | 4.50 | 0 | 2 | 0 | .000 | 2 | 2 | 1 | 0 | 0 | 14.0 | 16 | 7 | 7 | 3 | 9 | 2 | 0 | .281 | 1.36 |
| Dick Tidrow | NYA | 10.32 | 0 | 1 | 1 | .000 | 8 | 0 | 0 | 0 | 1 | 11.1 | 25 | 14 | 13 | 2 | 6 | 3 | 1 | .439 | 2.38 |
| Jim Todd | Oak | 4.97 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 0 | 0 | 12.2 | 15 | 8 | 7 | 8 | 9 | 3 | 1 | .306 | 1.82 |
| Pablo Torrealba* | ChA | 8.10 | 0 | 1 | 1 | .000 | 4 | 0 | 0 | 0 | 1 | 3.1 | 5 | 3 | 3 | 2 | 1 | 0 | 0 | .333 | 2.10 |
| Mike Torrez | Bos | 4.55 | 3 | 1 | 0 | .750 | 5 | 5 | 0 | 0 | 0 | 31.2 | 35 | 19 | 16 | 17 | 28 | 2 | 2 | .273 | 1.64 |
| Bill Travers* | Mil | 5.40 | 0 | 3 | 0 | .000 | 4 | 4 | 0 | 0 | 0 | 25.0 | 33 | 19 | 15 | 6 | 6 | 4 | 1 | .314 | 1.56 |
| Tom Underwood* | Tor | 5.02 | 2 | 2 | 0 | .500 | 5 | 5 | 2 | 0 | 0 | 28.2 | 31 | 21 | 16 | 12 | 22 | 3 | 3 | .279 | 1.50 |
| Rafael Vasquez | Sea | 9.53 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 0 | 0 | 5.2 | 8 | 7 | 6 | 4 | 3 | 1 | 1 | .333 | 2.12 |
| Rick Waits* | Cle | 3.47 | 0 | 4 | 0 | .000 | 5 | 5 | 1 | 0 | 0 | 36.1 | 29 | 21 | 14 | 21 | 10 | 4 | 4 | .218 | 1.38 |
| Milt Wilcox | Det | 7.11 | 1 | 1 | 0 | .500 | 4 | 4 | 0 | 0 | 0 | 19.0 | 30 | 17 | 15 | 13 | 8 | 2 | 4 | .375 | 2.26 |
| Eric Wilkins | Cle | 5.89 | 0 | 2 | 0 | .000 | 4 | 4 | 0 | 0 | 0 | 18.1 | 20 | 12 | 12 | 13 | 13 | 2 | 2 | .290 | 1.80 |
| Mike Willis* | Tor | 8.22 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 0 | 0 | 7.2 | 12 | 8 | 7 | 6 | 2 | 0 | 0 | .333 | 2.35 |
| Alan Wirth | Oak | 14.54 | 0 | 1 | 0 | .000 | 5 | 1 | 0 | 0 | 0 | 8.2 | 13 | 15 | 14 | 10 | 5 | 3 | 0 | .342 | 2.65 |
| Rick Wise | Cle | 4.40 | 1 | 2 | 0 | .333 | 5 | 5 | 0 | 0 | 0 | 30.2 | 34 | 16 | 15 | 6 | 18 | 2 | 2 | .268 | 1.30 |
| Rich Wortham* | ChA | 5.17 | 2 | 2 | 0 | .500 | 5 | 5 | 0 | 0 | 0 | 31.1 | 37 | 21 | 18 | 12 | 12 | 5 | 3 | .285 | 1.56 |
| Jim Wright | Bos | 15.19 | 0 | 1 | 0 | .000 | 2 | 1 | 0 | 0 | 0 | 5.1 | 12 | 10 | 9 | 1 | 5 | 3 | 0 | .414 | 2.44 |
| Kip Young | Det | 12.41 | 1 | 0 | 0 | 1.000 | 4 | 2 | 0 | 0 | 0 | 12.1 | 25 | 17 | 17 | 5 | 5 | 5 | 1 | .431 | 2.43 |
| Geoff Zahn* | Min | 8.10 | 1 | 1 | 0 | .500 | 4 | 3 | 0 | 0 | 0 | 16.2 | 30 | 17 | 15 | 6 | 8 | 2 | 1 | .395 | 2.16 |