| Year | Class 4A/AA | School | Time | Class 3A/A | School | Time | |
|---|---|---|---|---|---|---|---|
| 2023 | Izzy DeLay | Cheyenne Central | 1:05.72 | Payton Yost | Douglas | 1:08.53 | |
| 2022 | Izzy DeLay | Cheyenne Central | 1:06.20 | Lainy Duncan | Lander | 1:08.97 | |
| 2021 | Skye Rehard | Campbell County | 1:05.95 | Lilly Munoz | Green River | 1:05.03 | |
| 2020 | Skye Rehard | Campbell County | 1:07.57 | Hailey Uhrig | Green River | 1:05.00 | |
| 2019 | Olivia McPherson | Laramie | 1:02.65 | Brynlee Busskohl | Lyman | 1:05.59 | |
| 2018 | Jenny Holwell | Campbell County | 1:04.97 | Brynlee Busskohl | Lyman | 1:07.36 | |
| 2017 | Jenny Holwell | Campbell County | 1:04.20 | Juli Warren | Worland | 1:08.40 | |
| 2016 | Jenny Holwell | Campbell County | 1:03.90 | Miranda Williams | Cody | 1:09.43 | |
| 2015 | Annie Waldum | Campbell County | 1:04.21 | Miranda Williams | Cody | 1:10.46 | |
| 2014 | Annie Waldum | Campbell County | 1:05.35 | Brooke Perala | Douglas | 1:10.32 | |
| 2013 | Annie Waldum | Campbell County | 1:07.54 | Sonya Legerski | Sublette | 1:13.16 | |
| 2012 | Iliana Jones | Kelly Walsh | 1:08.26 | Caley Stafford | Buffalo | 1:11.04 | |
| 2011 | Hailey Pince | Riverton | 1:07.82 | Acadia DeAtley | Cody | 1:10.02 | |
| 2010 | Ashley Ochsner | Campbell County | 1:07.62 | Jesse Mayers | Jackson | 1:09.51 | |
| 2009 | Morgan Hartigan | Cheyenne East | 1:04.91 | Jesse Mayers | Jackson | 1:10.74 | |
| 2008 | Morgan Hartigan | Cheyenne East | 1:04.34 | Michelle Fenn | Sublette | 1:13.15 | |
| 2007 | Meghan Swirzcki | Campbell County | 1:07.17 | Gracey Lewis | Jackson | 1:12.13 | |
| 2006 | Kelsey Higginson | Kelly Walsh | 1:08.64 | Erin Stotts | Lander | 1:09.56 | |
| 2005 | Kaella Hartigan | Cheyenne Central | 1:07.01 | Erin Stotts | Lander | 1:10.31 | |
| 2004 | Kaella Hartigan | Cheyenne Central | 1:07.50 | Erin Stotts | Lander | 1:12.07 | |
| 2003 | Kaella Hartigan | Cheyenne Central | 1:08.04 | Leita Rolfe | Newcastle | 1:08.02 | |
| 2002 | Kaella Hartigan | Cheyenne Central | 1:07.81 | Leita Rolfe | Newcastle | 1:09.56 | |
| 2001 | Natasha Swan | Campbell County | 1:01.01 | Lisa Holden | Rawlins | 1:10.93 | |
| 2000 | Amber Canterbury | Cheyenne Central | 1:07.41 | Lisa Holden | Rawlins | 1:10.83 | |
| 1999 | Greta Black | Laramie | 1:11.49 | Ann Woods | Newcastle | 1:09.93 | |
| 1998 | Natasha Swan | Campbell County | 1:07.87 | Ann Woods | Newcastle | 1:10.87 | |
| 1997 | Michaela Steiger | Campbell County | 1:12.64 | Jeri Hetzel | Powell | 1:10.86 | |
| 1996 | Carrie Behrens | Cody | 1:10.35 | Kelly Gredvig | Rawlins | 1:13.42 | |
| 1995 | Stefanie Kapinus | Campbell County | 1:10.40 | Bonnie Armstrong | Newcastle | 1:12.53 | |
| 1994 | Cori McDill | Campbell County | 1:10.12 | Bonnie Armstrong | Newcastle | 1:12.29 | |
| 1993 | Elizabeth Nowak | Laramie | 1:11.11 | Jennifer Hudson | Lander | 1:13.75 | |
| 1992 | Cori McDill | Campbell County | 1:11.71 | Anne-Marie Tennyson | Kemmerer | 1:14.24 | |
| 1991 | Cori McDill | Campbell County | 1:12.96 | Tyler Bramlet | Kemmerer | 1:13.42 | |
| 1990 | Tina Lunne | Campbell County | 1:13.11 | Marsha Landowski | Newcastle | 1:09.25 | |
| 1989 | Kiesa Fornstrom | Laramie | 1:08.55 | Marsha Landowski | Newcastle | 1:11.11 | |
| 1988 | Tina Lunne | Campbell County | 1:13.94 | Marsha Landowski | Newcastle | 1:11.80 | |
| 1987 | Shannon Terry | Sheridan | 1:06.95 | Marsha Landowski | Newcastle | 1:11.42 | |
| 1986 | Shannon Terry | Sheridan | 1:09.44 | Karen Roles | Powell | 1:14.94 | |
| 1985 | Shannon Terry | Sheridan | 1:09.55 | Karen Roles | Powell | 1:15.03 | |
| 1984 | Mary Ann Underwood | Cheyenne East | 1:08.76 | Mary Jean Loveland | Evanston | 1:10.95 | |
| 1983 | Tam McCullough | Laramie | 1:08.15 | Shelly Smith | Greybull | 1:13.12 | |
| 1982 | Tam McCullough | Laramie | 1:06.86 | Penny Hawk | Newcastle | 1:18.53 | |
| 1981 | Tam McCullough | Laramie | 1:16.21 | Tina Gallagher | Douglas | 1:27.23 | **races in meters |
| 1980 | Bridget Buck | Kelly Walsh | 1:13.55 | Jan Endecott | Big Piney | 1:19.07 | |
| 1979 | Bridget Buck | Kelly Walsh | 1:13.13 | Cammy Petranovich | Douglas | 1:19.05 | |
| 1978 | Ellie Brandenburg | Laramie | 1:11.49 | Cammy Petranovich | Douglas | 1:21.34 | |
| 1977 (held winter 1978) | Roxann Nelson | Laramie | 1:16.33 | Cammy Petranovich | Douglas | 1:28.58 | **Class A races in meters |
| 1976 (held winter 1977) | Cindy Miyake | Laramie | 1:25.02 | Julie Heward | Green River | 1:29.28 | **races in meters |
| 1975 (held spring 1976) | Cindy Miyake | Laramie | 1:14.50 | Joyce Munsinger | Glenrock | 1:21.71 | |
| 1974 (held spring 1975) | Cindy Miyake | Laramie | 1:18.5 | Cindy Bertot | Green River | 1:20.9 | |
| 1973 (held spring 1974) | Gail Symons | Sheridan | 1:21.9 | Cindy Bertot | Green River | 1:25.9 | |
| 1972 (fall) | Carol Corsberg | Laramie | 1:22.0 | - | - | - | |
| 1971 (spring) | Luann Duletsky | Natrona | 1:20.2 | - | - | - | |
| 1970 (spring) | Julie Van Cleave | Riverton | 1:21.6 | - | - | - |