Did Minnesota's Titania Markland Run the Second Fastest 4x4 Split in NCAA History or Not?

So this Flotrack article above says what the title says. It is, at the time of this post, featured prominently on Flortrack's homepage. It says that she split 49.37 in the third leg of the 4x4 yesterday despite having an open PR of 51.4.

The link above is the official results of heat 2 of the women's 4x4 with splits. It says Minnesota's third leg ran 51.68.

My logic tells me that someone made a mistake, mistimed the split or whatever. I'm just surprised Flotrack could screw up like that, though. Can anyone confirm what actually happened.