| Perfect W-L Records in World Championships | ||||
| Women's | ||||
| Started 1920 | Final | |||
| Year | Name | W - L | Avg. | State |
| 2002 | Sylvianne Moisan | 15 - 0 | 86.0 | PQ,CAN |
| 1996 | Bev Nathe | 15 - 0 | 81.7 | MN |
| 1995 | Sue Snyder | 15 - 0 | 84.2 | KY |
| 1990 | Tari Powell | 15 - 0 | 83.1 | IL |
| 1981 | Vicki Winston | 11 - 0 | 78.0 | MO |
| 1980 | Opal Reno | 11 - 0 | 78.8 | OH |
| 1978 | Opal Reno | 11 - 0 | 82.8 | OH |
| 1975 | Vicki Winston | 7 - 0 | 73.5 | MO |
| 1974 | Lorraine Thomas | 7 - 0 | 80.3 | NY |
| 1973 | Ruth Hangen | 7 - 0 | 79.6 | NY |
| 1972 | Ruth Hangen | 7 - 0 | 76.6 | NY |
| 1971 | Ruth Hangen | 7 - 0 | 73.4 | NY |
| 1970 | Ruth Hangen | 7 - 0 | 72.0 | NY |
| 1969 | Vicki Winston | 7 - 0 | 79.6 | MO |
| 1968 | Lorraine Thomas | 7 - 0 | 74.9 | NY |
| 1967 | Vicki Winston | 7 - 0 | 73.6 | MO |
| 1964 | Sue Gillespie | 7 - 0 | 81.1 | IN |
| 1962 | Sue Gillespie | 7 - 0 | 65.3 | IN |
| 1961 | Vicki (Chapelle) Winston) | 7 - 0 | 57.1 | MO |
| 1959 | Vicki Chapelle | 4 - 0 | 53.6 | OR |
| 1958 | Vicki Chapelle | 6 - 0 | 54.8 | OR |
| 1956 | Vicki Chapelle | 9 - 0 | 52.6 | OR |
| 1955 | Hazel Harris | 7 - 0 | 42.7 | CO |
| 1953 | Pat DeLeary | 7 - 0 | 35.7 | AZ |
| 1952 | Sarah Byers | 7 - 0 | 53.5 | OR |
| 1951 | Sarah Byers | 7 - 0 | 44.3 | OR |
| 1950 | Pat DeLeary | 9 - 0 | 51.2 | AZ |
| 1948 | Anne Linquist | 7 - 0 | 43.0 | WV |
| 1947 | Katie Gregson | 8 - 0 | 50.0 | CA |
| 1935 | Ester James | 5 - 0 | 66.4 | MI |
| 1934 | Caroline Schultz | 7 - 0 | 81.3 | IL |
| 1933 | Caroline Schultz | 5 - 0 | 73.8 | IL |
| 1929 | Mayme Francisco | 2 - 0 | 54.5 | OH |
| 1926 | Mildred Brouillette | 14 - 0 | 43.2 | MN |
| 1924S | Laura Lanham (LH) | 13 - 0 | 56.0 | IL |
| 1924W | Laura Lanham (LH) | 6 - 0 | 52.7 | IL |
| 1923S | Mayme Francisco | 7 - 0 | 37.8 | OH |
| 1923W | Mayme Francisco | 5 - 0 | 45.2 | OH |
| 1922S | Laura Lanham (LH) | 8 - 0 | N/A | IL |
| 1922W | Mayme Francisco | 3 - 0 | N/A | OH |
| 1920 | Majorie Voorhies | 5 - 0 | N/A | NJ |
| LH = Left Handed | ||||
| Updated After 2006 World | ||||
| Compiled by Mel Yockstick | ||||