His third round of 64 or better has him at 21-under 189 and a six-shot lead over second-place Duffy Waldorf.
Armour tied Mark Calcavecchia's PGA Tour record-setting 54-hole total of 189 at the 2001 Phoenix Open. He also set the PGA Tour mark in relation to par at 21-under, breaking the 18-under total shared by Tiger Woods at the 2000 WGC-NEC Invitional and Bob Gilder at the 1982 Manufacturers Hanover Westchester Classic.
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