| 1. | - | | Relay Team | 49.32a | CO | Cedaredge | Colorado State Track and Field Championsips | Thu, May 17 |
| 2. | - | | Relay Team | 49.51a | CO | Platte Valley | Colorado State Track and Field Championsips | Thu, May 17 |
| 3. | - | | Relay Team | 49.93a | CO | Eaton | Colorado State Track and Field Championsips | Thu, May 17 |
| 4. | - | | Ashley Prescott
Mollie Bonds
Hannah Kirk
Lydia Lind | 50.25a | CO | Berthoud | Longmont Invitational 2012 | Sat, Apr 7 |
| 5. | - | | Relay Team | 50.73a | CO | Classical Academy | Colorado State Track and Field Championsips | Thu, May 17 |
| 6. | - | | Relay Team | 51.01a | CO | Coal Ridge | Colorado State Track and Field Championsips | Thu, May 17 |
| 7. | - | | Relay Team | 51.21a | CO | Bennett | Colorado State Track and Field Championsips | Thu, May 17 |
| 8. | - | | Relay Team | 51.26a | CO | Olathe | Colorado State Track and Field Championsips | Thu, May 17 |
| 9. | - | | Relay Team | 51.41a | CO | Lamar | Colorado State Track and Field Championsips | Thu, May 17 |
| 10. | - | | Relay Team | 51.43a | CO | James Irwin | Colorado State Track and Field Championsips | Thu, May 17 |
| 11. | - | | Mckenzie Zeman
Kendall Russell
Monica Stokes
Kassie Johanssen | 51.91a | CO | Holy Family | Holy Family Pre-Easter Invitational 2012 | Wed, Apr 4 |
| 12. | - | | Relay Team | 52.04a | CO | Hotchkiss | Colorado State Track and Field Championsips | Thu, May 17 |
| 13. | - | | Kayla Gaab
Nancy Pope
Elizabeth Glaze
Miranda Mathiason | 52.21a | CO | Highland | Eaton Reds Invitational | Sat, May 5 |
| 14. | - | | Relay Team | 52.35a | CO | Rifle | Colorado State Track and Field Championsips | Thu, May 17 |
| 15. | - | | Relay Team | 52.83a | CO | Colorado Springs Christian | Lewis-Palmer Invitational 2012 | Sat, May 5 |
| 16. | - | | Relay Team | 53.18a | CO | University | Colorado State Track and Field Championsips | Thu, May 17 |
| 17. | - | | Destini Mcghehey
Micaela Knickerbocker
Ashlyn Schulder
Amy Roach | 53.37a | CO | Bayfield | Abel Velasquez Invitational 2012 | Sat, Apr 28 |
| 18. | - | | Kelly Allen
Joanna Eaton
Marilyn Pierce
Sierra Linke | 53.45a | CO | Middle Park | Frontier League 3A Championship Meet 2012 | Thu, May 10 |
| 19. | - | | Relay Team | 53.49a | CO | La Junta | Coronado Cougar Classic 2012 | Fri, Apr 27 |
| 20. | - | | Megan Smith
Molly Quaranto
Elise Pate
Denika Spadafora | 53.50a | CO | Clear Creek | Frontier League 3A Championship Meet 2012 | Thu, May 10 |
| 21. | - | | Marlyn Granillo
Beth Sereff
Kaitlyn Chenore
Rita Stauter | 53.51a | CO | Frontier Academy | Eaton Reds Invitational | Sat, May 5 |
| 22. | - | | Relay Team | 53.62a | CO | Peak To Peak | Tiger Tornado Track Invite 2012 | Sat, May 5 |
| 23. | - | | Emily Valdez
Rachael Valdez
Julie Sisneros
Marissa Quinlin | 53.87a | CO | Centauri | Terry Alley Invitational 2012 | Sat, May 5 |
| 24. | - | | Alicia Gerken
Ashley Perez
Maesyn Ries
Shayla Ashley | 53.89a | CO | Weld Central | Patriot League Meet | Fri, May 11 |
| 25. | - | | Adriana Mora
Emily Logan
Adianna Gallegos
Shelby Hindes | 53.98a | CO | Monte Vista | Center Viking Invitational 2012 | Sat, Mar 31 |
| 26. | - | | Sarah Pascarelli
Cheyenne Hargrove
Cassidy DeFurio
Sera McFarland | 54.06a | CO | Buena Vista | Tiger Tornado Track Invite 2012 | Sat, May 5 |
| 27. | - | | Relay Team | 54.14c | CO | Trinidad | Ram Relays | Mon, Apr 23 |
| 28. | - | | Tristyn Bowers
Brooke Golden
Jamie Granzella
Morgan Walterschaller | 55.09a | CO | Salida | Gunnison Invitational 2012 | Sat, Apr 21 |
| 29. | - | | Cami Rayburn
Laura Eggleston
Jessica Boyd
Alana Watson | 55.36a | CO | Platte Canyon | Platte Canyon Frontier 2012 | Tue, May 1 |
| 30. | - | | Taylor Bertsch
Jordan Hicks
Miranda Glowczewski
Jaylynn Carson | 55.64a | CO | Alamosa | The Banana Belt Classic | Sat, Mar 17 |
| 31. | - | | Bailey Kraich
Cori Volk
Sammi McConnell
Mariah Brown | 56.05a | CO | Brush | Mustang Invitational | Sat, Apr 7 |
| 32. | - | | Cortlyne Huppe
Morgan Weaver
Makenna Green
Savanah Hart | 56.15a | CO | Florence | John Tate Challenge Cup 2012 | Fri, Apr 13 |
| 33. | - | | Jordan Steinke
Kayla Fredrich
Kaitlyn Brooks
Ashlynn Speakman | 56.20a | CO | Grand Valley | Cedaredge Invitational 2012 | Sat, Mar 31 |
| - | | Relay Team | 56.20a | CO | St Mary's (CS) | El Paso County Small School Championship 2012 | Sat, Apr 28 |
| 35. | - | | Lynzee Allen
Kiara Durrett
Molly Payne
Jordan Tisdall | 56.26a | CO | Faith Christian | Arvada City Championships | Sat, Mar 17 |
| 36. | - | | Cory Barna
Carolyn Green
Anna McCalley
Dania Couroveo | 56.56a | CO | Strasburg | Patriot League Meet | Fri, May 11 |
| 37. | - | | Kellyn Schneider
Naomi Lozoya
Abbey Wehrman
Adrianna Granados | 57.14c | CO | Valley | Max Marr Spartan Classic 2012 | Mon, Apr 16 |
| 38. | - | | Breeanna Reil
Ana Chacon
Alina Munoz
Ana Munoz | 57.83a | CO | Sheridan | Frontier League 3A Championship Meet 2012 | Thu, May 10 |
| 39. | - | | Saje Brinkman
Taylor Strohecker
Alexa Alexander
Morgan Schaaf | 57.85a | CO | Pagosa Springs | Terry Alley Invitational 2012 | Sat, May 5 |
| 40. | - | | Kristi Longfield
Megan Nuci
Margaret Arneson
Maddie Canarro | 57.87a | CO | Manitou Springs | Pueblo Hornet Invitational 2012 | Sat, Apr 7 |
| 41. | - | | Relay Team | 58.50a | CO | Ellicott | Lewis-Palmer Invitational 2012 | Sat, May 5 |
| 42. | - | | Devin Williams
Hunter Ash
Madie Bailey
Carina Capobianco | 59.99a | CO | Basalt | Montrose Invitational 2012 | Sat, Apr 28 |
