Denny McCarthy used an eight-under 63 on Thursday to hold the lead after one round at the 2019 AT&T Byron Nelson at the Trinity Forest Golf Club in Dallas, Texas.
That strong start gives McCarthy a one-shot lead over Tyler Duncan and Tom Hoge, who each shot a 64 in the opening round.
This year's field is headlined by Jordan Spieth, Brooks Koepka and former Dallas Cowboys quarterback Tony Romo.
Below is a look at the action from Day 1 in Dallas.
2019 AT&T Byron Nelson Leaderboard - First Round
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