Shane Lowry will resume from one-under-par on day two of the RBC Heritage at Hilton Head in South Carolina.
Viktor Hovland is the leader on seven-under, with Seamus Power well back on six-over.
Stephanie Meadow in one-over-par following her second round at the Lotte Championship on the LPGA Tour in Hawaii.
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She is nine shots behind joint leaders Yu Jin Sing and Natthakritta Vongtaveelap.