After a weather-hit third round at Celtic Manor, Sebastian Soderberg and Connor Syme sit three shots clear at the summit.
Scotland's Connor Syme battled rain and stiff winds to stay in the hunt for Wales Open glory, and an arguably greater prize.
Jordan Smith and Connor Syme made a great start at The Celtic Manor Resort, where U.S. Open qualification can be sealed on Sunday.
The Scottish Open and the BMW PGA Championship have new dates on the European Tour in October.
Two weeks on from winning his first European Tour title, Sam Horsfield added a second to his cabinet in Wales.
A fine round featuring eight birdies saw Scotland's Connor Syme move into the lead at the Celtic Classic.
The in-form Sam Horsfield is the man to catch heading into the weekend at The Celtic Manor Resort.
Brooks Koepka again discussed his comments about Dustin Johnson at the US PGA Championship.
The opening round of the Celtic Classic was marred by two coronavirus-related withdrawals, but Thomas Pieters went on to impress.
Alex Levy has tested negative for COVID-19 this week but must still miss the Celtic Classic and self-isolate for a fortnight.