"I ought to write a book called 'Winning Ugly', because I've done it. I did it today," said Leonard, who earned $882,000. "I didn't think it was ever going to get that close."
Leonard who got his 10th PGA Tour victory.
Toms, 2001 PGA Champion, eagled the par-five 16th to get within three and closed to two when he chipped in for birdie on the 17th. Toms, who missed the cut at this event three of his first four tries, has now finished in the top four in each of the last four years.