| Year | Male | Female | ||
|---|---|---|---|---|
| 2020 | 2020 race cancelled due to the COVID-19 pandemic. | |||
| 2019 | Silas Kipruto | 29:32 | Vicoty Chepngeno Women's course record | 32:15 |
| 2018 | Sammy Rotich | 29:22 | Vicoty Chepngeno | 32:40 |
| 2017 | Ben Sathre | 29:00 | Margaret Maina | 34:36 |
| 2016 | Kenneth Rotich | 30:16 | Emma Lee | 35:32 |
| 2015 | Ben Sathre | 29:36 | Lauren Rice | 36:11 |
| 2014 | Julius Koskei | 29:42 | Lilian Mariita | 33:26 |
| 2013 | Andrew Carlson | 29:27 | McKenzie Melander | 34:31 |
| 2012 | Matt Gabrielson | 30:01 | Emily Brown | 33:28 |
| 2011 | Matt Gabrielson | 29:45 | Michelle Frey | 34:49 |
| 2010 | Richard Kandie | 29:30 | Alemtsehay Misganaw | 33:52 |
| 2009 | Sammy Malakwen | 29:17 | Alemtsehay Misganaw | 34:47 |
| 2008 | Sammy Malakwen | 30:51 | Kimberly Magee | 36:50 |
| 2007 | Alena Reta | 29:43 | Alemtsehay Misganaw | 32:58 |
| 2006 | Henry Kipchirchir | 29:48 | Jemima Jelagat | 32:57 |
| 2005 | Moses Waweru | 30:00 | Ketema Atalelech | 33:54 |
| 2004 | Jared Segera | 30:15 | Denisa Costescu | 34:22 |
| 2003 | Jared Segera | 29:45 | Lynbol Kremleva | 34:41 |
| 2002 | Kibet Cherop | 30:10 | Lynbol Kremleva | 34:31 |
| 2001 | Julius Mwangi | 29:13 | Janet Robertz | 35:06 |
| 2000 | Julius Mwangi | 29:26 | Kelly Keeler | 34:32 |
| 1999 | Jared Segera | 29:40 | Kelly Keeler | 34:38 |
| 1998 | Cosmas Musyoka | 30:09 | Deb Gormley | 35:45 |
| 1997 | Zach Kunyiha | 28:50 | Deanna O'Neil | 34:27 |
| 1996 | Curt Kotsonas | 29:49 | Deb Gormley | 34:26 |
| 1995 | John Kihonge | 29:13 | Deb Gormley | 34:49 |
| 1994 | Jonah Koech Men's course record Overall course record | 28:45 | Bonnie Sons | 34:30 |
| 1993 | Dan Held | 29:23 | Sabrina Dornhoefer | 34:17 |
| 1992 | Dan Held | 30:00 | Janis Klecker | 32:52 |
| 1991 | Dan Held | 29:52 | Janice Ettle | 35:03 |
| 1990 | Pat McCarthy | 29:23 | Janice Ettle | 33:43 |
| 1989 | Peter Wareham | 29:35 | Janice Ettle | 34:52 |
| 1988 | Scott Ergen | 29:38 | Leslie Seymour | 34:44 |
| 1987 | Scott Jenkins | 29:26 | Janice Klecker | 34:02 |
| 1986 | Jerrold Wynia | 30:00 | Jan Ettle | 33:53 |
| 1985 | Lindsay Brown | 29:15 | Janice Klecker | 33:20 |
| 1984 | Lindsay Brown | 29:10 | Susan Schneider | 33:20 |
| 1983 | Mike Palmquist | 29:07 | Suzanne Wurl | 36:27 |
| 1982 | John Stokka | 30:16 | Lorraine Moller | 33:54 |
| 1981 | Steve Reynolds | 29:08 | Janice Ettle | 36:36 |
| 1980 | Tony Shockency | 29:48 | Maggie Munro | 36:10 |
| 1979 | Tony Shockency | 30:03 | Jan Arenz | 37:01 |
| 1978 | Paul Raether | 30:34 | Jan Arenz | 37:21 |
