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Chicago White Sox Winning Percentage Leaders

Career totals with the White Sox and the best single seasons in club history. Records run through the 2025 season.

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Lefty Williams holds the White Sox career record with .648 winning percentage. The single-season record is .857, by Jason Bere in 1994.

ERA W SO SV WHIP IP K/9 BB/9 K/BB SHO CG GS G L BB W-L%

Rate records use the league's own minimums: a season needs the standard 1.0 inning per team game with the club, a career 1,000+ innings pitched with the club.

All-time White Sox leaders

Career totals with the club
# Player With the club W-L% G
1 Lefty Williams Lefty Williams 1916–1920 .648 183
2 Juan Pizarro Juan Pizarro 1961–1966 .615 192
3 Jack McDowell Jack McDowell 1987–1994 .611 191
4 Ed Walsh Ed Walsh 1904–1916 .609 426
5 Eddie Cicotte Eddie Cicotte 1912–1920 .605 353
6 Chris Sale Chris Sale 2010–2016 .597 228
7 Dick Donovan Dick Donovan 1955–1960 .594 189
8 Reb Russell Reb Russell 1913–1919 .579 242
9 Mark Buehrle Mark Buehrle 2000–2011 .575 390
10 Frank Smith Frank Smith 1904–1910 .575 237
11 Wilson Alvarez 1991–1997 .573 185
12 James Baldwin 1995–2001 .566 184
13 Doc White Doc White 1903–1913 .564 360
14 Joe Haynes Joe Haynes 1941–1948 .561 218
15 Frank Owen Frank Owen 1903–1909 .559 186
16 Alex Fernandez Alex Fernandez 1990–1996 .556 199
17 Nick Altrock Nick Altrock 1903–1909 .553 180
18 Billy Pierce Billy Pierce 1949–1961 .550 456
19 Red Faber Red Faber 1914–1933 .544 669
20 Britt Burns Britt Burns 1978–1985 .539 193
20 Gary Peters Gary Peters 1959–1969 .539 258
22 Early Wynn Early Wynn 1958–1962 .538 157
23 Jon Garland Jon Garland 2000–2007 .532 246
24 Ted Lyons Ted Lyons 1923–1946 .531 594
25 Roy Patterson Roy Patterson 1901–1907 .529 184

Single-season White Sox records

Best seasons in club history
# Player Season W-L% G
1 Jason Bere 1994 .857 24
2 Eddie Cicotte Eddie Cicotte 1919 .806 40
3 Clark Griffith Clark Griffith 1901 .774 35
4 Richard Dotson Richard Dotson 1983 .759 35
5 Dallas Keuchel Dallas Keuchel 2020 .750 11
5 Reb Russell Reb Russell 1917 .750 35
5 Chris Sale Chris Sale 2014 .750 26
5 Bob Shaw Bob Shaw 1959 .750 47
5 Monty Stratton Monty Stratton 1937 .750 22
5 Doc White Doc White 1906 .750 28
11 Joe Horlen Joe Horlen 1967 .731 35
12 Dick Donovan Dick Donovan 1957 .727 28
12 Ed Walsh Ed Walsh 1908 .727 66
14 Britt Burns Britt Burns 1982 .722 28
15 Jon Garland Jon Garland 2006 .720 33
16 Gary Peters Gary Peters 1964 .714 37
16 Virgil Trucks Virgil Trucks 1953 .714 24
18 LaMarr Hoyt LaMarr Hoyt 1983 .706 36
19 Gary Peters Gary Peters 1963 .704 41
20 Eddie Cicotte Eddie Cicotte 1917 .700 49
20 Joe Haynes Joe Haynes 1947 .700 29
20 Vern Kennedy Vern Kennedy 1936 .700 35
20 Dickey Kerr Dickey Kerr 1920 .700 45
20 Esteban Loaiza Esteban Loaiza 2003 .700 34
20 Ted Lyons Ted Lyons 1939 .700 21