Winners of the Sidewise Awards for Alternate History were announced at ReConStruction, the 10th NASFiC, held August 5-8, 2010, in Raleigh, North Carolina. The winners are Reynolds and Conroy. The judges noted before the announcement that, in the Long Form category, No Award was an option.
- “The Fixation” by Alastair Reynolds (Solaris Book of New Sci-F)
- “Yes, We Have No Bananas” by Paul Di Filippo (Eclipse 3)
- “Edison’s Frankenstein” by Chris Roberson (Postscripts 20/21)
- “Black Swan” by Bruce Sterling (Interzone 221)
- “The Persistence of Souls” by Sarah Zettel (The Shadow Conspiracy)
- 1942 Robert Conroy (Ballantine)