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Chicago White Sox Earned Run Average 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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Ed Walsh holds the White Sox career record with 1.81 earned run average. The single-season record is 1.27, by Ed Walsh in 1910.

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 ERA G
1 Ed Walsh Ed Walsh 1904–1916 1.81 426
2 Frank Smith Frank Smith 1904–1910 2.18 237
3 Eddie Cicotte Eddie Cicotte 1912–1920 2.25 353
4 Jim Scott Jim Scott 1909–1917 2.30 317
4 Doc White Doc White 1903–1913 2.30 360
6 Reb Russell Reb Russell 1913–1919 2.33 242
7 Nick Altrock Nick Altrock 1903–1909 2.40 180
8 Joe Benz Joe Benz 1911–1919 2.43 251
9 Frank Owen Frank Owen 1903–1909 2.48 186
10 Roy Patterson Roy Patterson 1901–1907 2.75 184
11 Gary Peters Gary Peters 1959–1969 2.92 258
12 Tommy John Tommy John 1965–1971 2.95 237
13 Chris Sale Chris Sale 2010–2016 3.00 228
14 Juan Pizarro Juan Pizarro 1961–1966 3.05 192
15 Lefty Williams Lefty Williams 1916–1920 3.09 183
16 Joe Horlen Joe Horlen 1961–1971 3.11 329
17 Joe Haynes Joe Haynes 1941–1948 3.14 218
18 Red Faber Red Faber 1914–1933 3.15 669
19 Wilbur Wood Wilbur Wood 1967–1978 3.18 578
20 Billy Pierce Billy Pierce 1949–1961 3.19 456
21 Thornton Lee Thornton Lee 1937–1947 3.33 261
22 Dick Donovan Dick Donovan 1955–1960 3.41 189
23 Jack McDowell Jack McDowell 1987–1994 3.50 191
24 Jose Quintana Jose Quintana 2012–2017 3.51 172
25 Eddie Smith Eddie Smith 1939–1947 3.55 188

Single-season White Sox records

Best seasons in club history
# Player Season ERA G
1 Ed Walsh Ed Walsh 1910 1.27 45
2 Ed Walsh Ed Walsh 1909 1.41 31
3 Ed Walsh Ed Walsh 1908 1.42 66
4 Doc White Doc White 1906 1.52 28
5 Eddie Cicotte Eddie Cicotte 1917 1.53 49
6 Eddie Cicotte Eddie Cicotte 1913 1.58 41
7 Ed Walsh Ed Walsh 1907 1.60 56
8 Doc White Doc White 1909 1.72 24
9 Doc White Doc White 1905 1.76 36
10 Eddie Cicotte Eddie Cicotte 1916 1.78 44
10 Doc White Doc White 1904 1.78 30
12 Frank Smith Frank Smith 1909 1.80 51
13 Eddie Cicotte Eddie Cicotte 1919 1.82 40
14 Nick Altrock Nick Altrock 1905 1.88 38
14 Joe Horlen Joe Horlen 1964 1.88 32
14 Ed Walsh Ed Walsh 1906 1.88 41
17 Reb Russell Reb Russell 1913 1.90 52
17 Jim Scott Jim Scott 1913 1.90 48
19 Wilbur Wood Wilbur Wood 1971 1.91 44
20 Red Faber Red Faber 1917 1.92 41
21 Frank Owen Frank Owen 1904 1.94 37
22 Fred Olmstead 1910 1.95 32
22 Reb Russell Reb Russell 1917 1.95 35
24 Billy Pierce Billy Pierce 1955 1.97 33
25 Tommy John Tommy John 1968 1.98 25