Johnson put his postseason in jeopardy by skipping the opening FedEx Cup playoff event to attend his brother's wedding. He was at No. 27 before he arrived for the BMW Championship and started the week just wanting to make sure he was in Atlanta.
He did that and more, giving him 10 wins in his 10 years on the PGA Tour.
"I'm going to have to forget about this week, take Atlanta for Atlanta and just play," Johnson said. "East Lake is not Conway Farms. It's a beast. I'm just going to keep doing what I'm doing and just be thankful."
Johnson finished at 16-under 268 and earned $1.44 million, pushing his career earnings just past $30 million.
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