The audio portion of this call will be archived on the Investor section of our website later today under the heading Investor Events and will remain available till our next quarterly call. A replay of this call will also be available until Thursday, July 26. Replay number is (888) 203-1112 in the U.S. and (719) 457-0820 internationally, and the access code is 1304801.
During the presentation, we will describe certain of the more significant factors that impacted year-over-year performance. Please refer to the earnings release, Form 10-Q and other materials previously referenced for additional factors that impacted year-over-year performance. In these remarks and accompanying presentation, all references to earnings, revenues and other company specific financial metrics relate only to the continuing operation of Danaher's businesses unless otherwise noted.
We will also make some forward-looking statements on today's call, including statements regarding events or developments that we believe or anticipate will or may occur in the future. It's possible that actual results might differ materially from those projected in any forward-looking statements. An additional information concerning factors that could cause actual results to differ materially from those in the forward-looking statements is set forth in our SEC filings. These forward-looking statements speak only as of the date they are made. We do not assume any obligation to update any forward-looking statements, whether as a result of new information, future events, development or otherwise.
With that, I'll turn the call over to Larry.H. Lawrence Culp Matt, thanks, and good morning, everyone. We were pleased by the sequential improvement in our core growth and our strong operating margin and cash flow performance in the quarter. Despite the macro headlines, we grew 3.5% organically in the quarter, and the team did an outstanding job on the execution front with an 80 basis points of year-over-year core operating margin expansion, a 31% year-over-year increase in free cash flow and a 31% growth in EPS.