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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Carlos Prieto | 1.21 | 1929-1934 | |
| 2 | Paul Lalonde | 1.22 | 1913-1920 | |
| 3 | Jesús Martínez | 1.26 | 1931-1941 | |
| 3 | José Hurtado | 1.26 | 1927-1933 | |
| 3 | Dennis Brouwers | 1.26 | 1919-1934 | |
| 6 | Michael Washington | 1.27 | 1975-1984 | |
| 7 | Liam Weddle | 1.29 | 1911-1919 | |
| 7 | Bob Montalbetti | 1.29 | 1921-1933 | |
| 7 | Wayne Manuel | 1.29 | 1933-1938 | |
| 7 | Scott Ashe | 1.29 | 1918-1923 | |
| 11 | Aurelio Garza | 1.30 | 1929-1942 | |
| 12 | Ray Muller | 1.31 | 1914-1922 | |
| 12 | Wade Jonas | 1.31 | 1911-1919 | |
| 14 | Campbell van Kooten | 1.32 | 1925-1929 | |
| 15 | Gilberto Castagna | 1.33 | 1928-1937 | |
| 16 | Akim Rossi | 1.34 | 1960-1973 | |
| 17 | Jon Wilson | 1.35 | 1915-1920 | |
| 17 | Yo Li | 1.35 | 1927-1938 | |
| 17 | Alfredo Benítez | 1.35 | 1924-1933 | |
| 17 | Leo Spokes | 1.35 | 1919-1927 | |
| 21 | Neil Bernard | 1.36 | 1939-1948 | |
| 21 | Oliver Selkirk | 1.36 | 1916-1923 | |
| 21 | Antony Fingleson | 1.36 | 1921-1931 | |
| 21 | Uqessun Jumba | 1.36 | 1974-1988 | |
| 25 | Javier Echevarría | 1.37 | 1936-1944 | |
| 25 | George Crowley | 1.37 | 1915-1923 | |
| 25 | Augusto Almodovar | 1.37 | 1942-1951 | |
| 28 | Sixto Sánchez | 1.39 | 1938-1950 | |
| 28 | Igram Verhoek | 1.39 | 1928-1939 | |
| 28 | Roy Bulmer | 1.39 | 1944-1950 | |
| 28 | José Canseco | 1.39 | 1924-1933 | |
| 28 | Alberto Quezada | 1.39 | 1969-1983 | |
| 28 | Gabriel Martínez | 1.39 | 1935-1943 | |
| 34 | Kalervo Haavikko | 1.40 | 1928-1938 | |
| 34 | Jesús Béltre | 1.40 | 1921-1927 | |
| 34 | Quentin Hasted | 1.40 | 1915-1924 | |
| 37 | Jake Arbuckle | 1.41 | 1919-1930 | |
| 37 | Tokutomi Sugano | 1.41 | 1934-1940 | |
| 37 | Hong-bo Wu | 1.41 | 1912-1923 | |
| 37 | Mario Durán | 1.41 | 1934-1947 | |
| 41 | Vincente Bamentos | 1.42 | 1928-1937 | |
| 41 | José Montoya | 1.42 | 1937-1945 | |
| 41 | Paul Williams | 1.42 | 1926-1932 | |
| 41 | António López | 1.42 | 1917-1923 | |
| 41 | Griff Howey | 1.42 | 1924-1934 | |
| 46 | Jay Rundle | 1.43 | 1914-1919 | |
| 47 | Frank Helmer | 1.44 | 1914-1924 | |
| 47 | Armando Rea | 1.44 | 1937-1944 | |
| 49 | Alastair Grimes | 1.45 | 1919-1923 | |
| 49 | Kinnard Pancefoot | 1.45 | 1924-1935 | |
| 49 | Jason Coombes | 1.45 | 1922-1930 | |
| 52 | Gabriel Garza | 1.46 | 1941-1950 | |
| 52 | Bryce Tessier | 1.46 | 1949-1955 | |
| 54 | Ángel Arroyo | 1.47 | 1916-1921 | |
| 54 | Francisco Soto# | 1.47 | 1977-1989 | |
| 54 | Francisco García | 1.47 | 1975-1988 | |
| 54 | Ricardo García | 1.47 | 1929-1937 | |
| 58 | Wasi Esam | 1.48 | 1975-1989 | |
| 58 | Mauro Vargas | 1.48 | 1942-1953 | |
| 60 | Claudio Maes | 1.49 | 1928-1940 | |
| 60 | Avery Cross | 1.49 | 1960-1968 | |
| 60 | Tommy Richardson | 1.49 | 1984-1989 | |
| 60 | León Morales | 1.49 | 1921-1925 | |
| 60 | Joey Jackson | 1.49 | 1960-1969 | |
| 65 | Max Lacoste | 1.50 | 1935-1942 | |
| 65 | Axel Scott | 1.50 | 1914-1918 | |
| 65 | Tilmão Romeira | 1.50 | 1922-1935 | |
| 68 | Kenneth Bennerman | 1.51 | 1941-1950 | |
| 68 | Philippe Dupont | 1.51 | 1913-1923 | |
| 68 | Raffaele Ghislieri | 1.51 | 1936-1946 | |
| 68 | Zander Golunski | 1.51 | 1937-1950 | |
| 72 | Francisco García | 1.52 | 1939-1944 | |
| 72 | Yin-xiang Jin# | 1.52 | 1975-1986 | |
| 72 | Micah Hollington | 1.52 | 1949-1956 | |
| 75 | Arnie Park# | 1.53 | 1983-1990 | |
| 75 | Jon Tosewell | 1.53 | 1944-1953 | |
| 75 | Clifton Scott | 1.53 | 1936-1950 | |
| 78 | Ron Farnell | 1.54 | 1914-1920 | |
| 79 | Arthur Blumberg | 1.55 | 1931-1941 | |
| 80 | Shane Mansell | 1.56 | 1911-1917 | |
| 80 | Blair Lamond | 1.56 | 1925-1936 | |
| 80 | George Stevens | 1.56 | 1977-1986 | |
| 80 | Scott Portsmouth | 1.56 | 1958-1972 | |
| 84 | Raymond Denhardt | 1.57 | 1941-1950 | |
| 85 | Christophe Besson | 1.58 | 1956-1968 | |
| 85 | Emerson Boyd | 1.58 | 1938-1947 | |
| 85 | Guillermo Gutiérrez | 1.58 | 1956-1964 | |
| 88 | Ben Jones | 1.59 | 1980-1986 | |
| 89 | Ted Fritz | 1.60 | 1963-1969 | |
| 90 | Robbie Kidwell | 1.61 | 1949-1959 | |
| 90 | Junji Onodera | 1.61 | 1966-1977 | |
| 90 | Josuke Watanabe | 1.61 | 1931-1938 | |
| 90 | Miroslav Fleming | 1.61 | 1982-1989 | |
| 94 | Stan McIndoe | 1.62 | 1940-1947 | |
| 95 | Nicholas Cassidy | 1.63 | 1979-1989 | |
| 96 | Toshikuni Mizuno | 1.64 | 1963-1969 | |
| 96 | Penrod Segel | 1.64 | 1961-1966 | |
| 98 | Raúl Reyes# | 1.66 | 1982-1990 | |
| 99 | Roger Mansel | 1.67 | 1950-1959 | |
| 99 | Cris Rivas | 1.67 | 1953-1958 |
