Originally posted by ianpickeringchesslab lists 83 wins by white after 1.a3 since 1991, so yes, the book wouldn't be quite as short as i thought. if you really have nothing better to do, why not do some research and discover which is the MOST unsuccessful opening move by white?
Sorry to be so pedantic (I've got nothing better to do) but I think you'll find that around 30% of the grandmaster games in the last 10 years opening with 1. a3 were won by white!!