I think this is where history probably ends unless Manu can come back and be really effective. But this was from the SAEN and I thought it was interesting:
http://blog.mysanantonio.com/spursnation/2011/04/18/spurs-game-1-history-only-goes-so-far/
quote:
The following shows how the Spurs have fared after losing the first game of a series since 2003:
2003: Beat Phoenix 4-2 in first round; beat Dallas 4-2 in Western finals; won NBA championship
2005: Beat Denver 4-1 in first round; won NBA championship
2007: Beat Denver 4-1 in first round; won NBA championship
2008: Beat New Orleans 4-3 in Western semifinals; lost to L.A. Lakers 4-1 in Western finals
2009: Lost to Dallas 4-1 in first round
2010: Beat Dallas 4-2 in first round; lost to Phoenix 4-0 in Western semifinals
2011: Trailing Memphis 1-0 in first round
http://blog.mysanantonio.com/spursnation/2011/04/18/spurs-game-1-history-only-goes-so-far/