Oakland Athletics (1968-99)
Single Season Winning Percentage (min 15 decisions)
RANK OAKLAND A'S PITCHERS YEAR W L PCT
1 Welch, Bob 1990 27 6 .818 2 Hunter, Catfish 1973 21 5 .808 3 Blue, Vida 1971 24 8 .750 Hunter, Catfish 1972 21 7 .750 Dobson, Chuck 1971 15 5 .750 6 Bosman, Dick 1975 11 4 .733 7 Davis, Storm 1989 19 7 .731 8 Odom, Blue Moon 1969 15 6 .714 Odom, Blue Moon 1972 15 6 .714 10 Norris, Mike 1980 22 9 .710 11 Stewart, Dave 1989 21 9 .700 12 Davis, Storm 1988 16 7 .696 13 Blue, Vida 1973 20 9 .690 14 Welch, Bob 1989 17 8 .680 Moore, Mike 1991 17 8 .680 16 Hunter, Catfish 1974 25 12 .676 17 Blue, Vida 1975 22 11 .667 Stewart, Dave 1990 22 11 .667 Rogers, Kenny 1998 16 8 .667 McCatty, Steve 1981 14 7 .667 Stottlemyre, Todd 1995 14 7 .667 22 Hunter, Catfish 1971 21 11 .656 23 Welch, Bob 1988 17 9 .654 24 Young, Curt 1987 13 7 .650 25 Stewart, Dave 1988 21 12 .636 26 Holtzman, Ken 1972 19 11 .633 Moore, Mike 1989 19 11 .633 28 Andujar, Joaquin 1986 12 7 .632 29 Fingers, Rollie 1975 10 6 .625 Medich, Doc 1977 10 6 .625 Keough, Matt 1981 10 6 .625 Underwood, Tom 1982 10 6 .625 Birtsas, Tim 1985 10 6 .625 34 Sutton, Don 1985 13 8 .619 *Heredia, Gil 1999 13 8 .619 36 Holtzman, Ken 1973 21 13 .618 37 Odom, Blue Moon 1968 16 10 .615 38 Langford, Rick 1980 19 12 .613 39 Welch, Bob 1992 11 7 .611 40 Sanderson, Scott 1990 17 11 .607 41 Stewart, Dave 1987 20 13 .606 42 Darling, Ron 1992 15 10 .600 Lindblad, Paul 1969 9 6 .600 Nelson, Gene 1988 9 6 .600 Young, Curt 1990 9 6 .600 Ontiveros, Steve 1995 9 6 .600 47 Young, Curt 1986 13 9 .591 48 Moore, Mike 1992 17 12 .586 49 Blue, Vida 1976 18 13 .581 50 Young, Curt 1988 11 8 .579 51 Torrez, Mike 1976 16 12 .571 Norris, Mike 1981 12 9 .571 53 Burris, Ray 1984 13 10 .565 54 Hunter, Catfish* 1970 18 14 .563 Holtzman, Ken 1975 18 14 .563 Mitchell, Paul 1976 9 7 .563 Underwood, Tom 1983 9 7 .563 Caudill, Bill 1984 9 7 .563 59 Segui, Diego 1971 10 8 .556 Ontiveros, Steve 1987 10 8 .556 61 Keough, Matt 1980 16 13 .552 62 Fingers, Rollie 1972 11 9 .550 Haynes, Jimmy 1998 11 9 .550 64 Langford, Rick 1981 12 10 .545 Stewart, Dave 1992 12 10 .545 66 Fingers, Rollie 1976 13 11 .542 67 Dobson, Chuck 1969 15 13 .536 68 Bahnsen, Stan 1976 8 7 .533 Kingman, Brian 1979 8 7 .533 Wasdin, John 1996 8 7 .533 71 Blue, Vida 1974 17 15 .531 72 Odom, Blue Moon 1970 9 8 .529 Howell, Jay 1985 9 8 .529 74 Holtzman, Ken 1974 19 17 .528 75 Beard, Dave 1982 10 9 .526 76 Johnson, John Henry 1978 11 10 .524 77 Witt, Bobby 1993 14 13 .519 78 Dobson, Chuck 1970 16 15 .516 79 McCatty, Steve 1980 14 14 .500 Codiroli, Chris 1985 14 14 .500 Hunter, Catfish 1968 13 13 .500 Nash, Jim 1968 13 13 .500 Codiroli, Chris 1983 12 12 .500 Stewart, Dave 1991 11 11 .500 Segui, Diego 1970 10 10 .500 Krueger, Bill 1984 10 10 .500 Nash, Jim 1969 8 8 .500 88 Welch, Bob 1991 12 13 .480 89 McCatty, Steve 1979 11 12 .478 90 Krausse, Lew 1968 10 11 .476 Darling, Ron 1994 10 11 .476 92 Krueger, Bill 1985 9 10 .474 *Oquist, Mike 1999 9 10 .474 94 Lacey, Bob 1978 8 9 .471 95 Fingers, Rollie 1973 7 8 .467 Todd, Jim 1976 7 8 .467 97 Moore, Mike 1990 13 15 .464 98 Dobson, Chuck 1968 12 14 .462 99 Odom, Blue Moon 1971 10 12 .455 Broberg, Pete 1978 10 12 .455 101 Rijo, Jose 1986 9 11 .450 Welch, Bob 1993 9 11 .450 103 Hunter, Catfish 1969 12 15 .444 Witt, Bobby 1994 8 10 .444 105 Fingers, Rollie 1970 7 9 .438 106 Langford, Rick 1979 12 16 .429 107 Blue, Vida 1977 14 19 .424 108 Conroy, Tim 1983 7 10 .412 Van Poppel, Todd 1994 7 10 .412 Reyes, Carlos 1996 7 10 .412 111 Langford, Rick 1982 11 16 .407 Candiotti, Tom 1998 11 16 .407 113 McCatty, Steve 1983 6 9 .400 114 Norris, Mike 1982 7 11 .389 Wengert, Don 1996 7 11 .389 Oquist, Mike 1998 7 11 .389 117 Keough, Matt 1982 11 18 .379 118 Blue, Vida 1972 6 10 .375 119 *Haynes, Jimmy 1999 7 12 .368 120 McCatty, Steve 1984 8 14 .364 121 Langford, Rick 1978 7 13 .350 122 Keough, Matt 1978 8 15 .348 123 Renko, Steve 1978 6 12 .333 Johns, Doug 1996 6 12 .333 Downs, Kelly 1993 5 10 .333 126 Sorensen, Larry 1984 6 13 .316 127 Wengert, Don 1997 5 11 .313 128 Langford, Rick 1977 8 19 .296 129 Odom, Blue Moon 1973 5 12 .294 130 Kingman, Brian 1980 8 20 .286 131 Heaverlo, Dave 1979 4 11 .267 132 Kingman, Brian 1982 4 12 .250 133 Karsay, Steve 1997 3 12 .200 134 Keough, Matt 1979 2 17 .105
* denotes current Oakland A's player