In this case, a split was not a draw.

Despite narrowly winning Indiana, while losing North Carolina, Senator Hillary Rodham Clinton did not fundamentally improve her chances of securing the Democratic presidential nomination. If anything, Mrs. Clinton’s hopes for overtaking Senator Barack Obama dwindled further on Tuesday night.

For Mr. Obama, the outcome came after a brutal period in which he was on the defensive over the inflammatory comments of his former pastor. That he was able to hold his own under those circumstances should allow him to make a case that he has proved his resilience in the face of questions about race, patriotism and political mettle — the very kinds of issues that the Clinton campaign has suggested would leave him vulnerable in the general election.

Beating Mr. Obama in Indiana, a state he had once been confident of winning, was an achievement for Mrs. Clinton. But it was hardly the kind of strong victory she posted in Pennsylvania and Ohio. And when paired with his comfortable victory in North Carolina — which Mr. Obama pointedly described in his victory speech as “a big state, a swing state” — it hardly seemed enough for Mrs. Clinton to convince so-called uncommitted superdelegates to rally around her candidacy.

Her showing in the two states did not permit Mrs. Clinton to cut into Mr. Obama’s lead in pledged delegates or his overall lead in the popular vote.