Do you just mean "primary votes for candidates who turned out to not be the party's nominee?" Well, since almost my entire voting "career" has been in Washington state, whain,ere we have party caucuses instead of primaries, I can pretty much say "most of the time." In 1984, I initially voted for George McGovern; however, he withdrew from the race while we were still in the caucus, and I wound up switching to Gary Hart. (It was rather complicated -- actually, I would have supported Mondale, but there was some vote-trading during the session, and I agreed to go with Hart in exchange for having some platform proposals adopted and sent "up the chain" to the county caucus.) In 1988, I went with Dukakis. I didn't attend the caucus in 1992, and they didn't have one in 1996 because Clinton was running unopposed. Once again, I skipped the caucus in 2000, but went with another "outlier" in 2004 with Dean over Kerry, who had achieved prohibitive front-runner status by that time. No question about 2008 -- at the caucus, I was the precinct captain for Obama. Of course, at the time, I would have said that was an outlier, since Hillary Clinton was sure to get the nomination! Once again, no caucus this year, as the President was running unopposed.
But here's a true, non-primary outlier: although I've almost always voted a straight Democratic ticket (and often worked for Democratic candidates, even before reaching voting age), my first vote ever wasn't for a Democrat. Specifically, it was for Governor Francis Sargent of Massachusetts, that now-extinct political species, the liberal Republican, who I found preferable to challenger (and eventual winner) Michael Dukakis -- that's right, the same Dukakis I was to represent all the way to county caucus (and alternate to state convention) fourteen years later!
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