| 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Long Form |
| Collaborator , Murray Davies. |
| F | Disturbance of Fate , Mitchell Freedman. |
| F | Liverpool Fantasy , Larry Kirwan. |
| F | Conquistador , S. M. Stirling. |
| Short Form |
| O One [O uno] , Chris Roberson. |
| F | The Day We Went Through the Transition , Ricard de la Casa & Pedro Jorge Romero. |
| F | The Eyes of America [Los ojos de América] , Geoffrey A. Landis. |
| F | The Cuban Missile Crisis: Second Holocaust , Robert L. O'Connell. |
| F | The Reign of Terror , Robert Silverberg. |