Award Years for Lord Ruthven Award
| 1980's: | - | - | - | - | - | - | - | - | - | 1989 |
| 1990's: | 1990 | - | - | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 |
| 2000's: | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| 2010's: | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| 2020's: | 2020 | 2021 | - | - | - | - | - | - | - | - |
| Fiction | ||
| Win | Writ in Blood | Chelsea Quinn Yarbro |
| Nonfiction | ||
| Win | Bram Stoker's Dracula: Sucking Through the Century, 1897-1997 | Carol Margaret Davison and Paul Simpson-Housley |