Kuchar ended the day at 11-under-par 199 after finishing up Friday's suspended second round and the 18 holes of Round 3. The 34-year-old Florida native is seeking his sixth PGA Tour title.
The crowded leaderboard included four competitors one shot back at minus-10. Matt Every and Boo Weekley each fired a fired 4-under 66, while Chris Stroud (67) and Graham DeLaet (69) joined them in second place.
The second round had been delayed 2 hours due to lightning at Colonial Country Club.
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