(CNN) -- He has entered the record books with his 600th round of golf this year, but retiree Richard Lewis is not finished yet.
The 64-year-old American has walked some 2,500 miles and hit over 50,000 shots after reaching the milestone at the Four Seasons Resort in the Las Colinas region of Dallas, Texas on Sunday.
The DeSoto, Dallas native has played as many as 54 holes in a day in 2010, but made do with a regulation 18 to extend his world record for the number of rounds played in a year by an amateur.
"I thought 400 was tough and 500 was a stretch, but 600 was what I had in mind all the time," he told the PGA Tour website after shooting an 86.
"It's a huge relief and sense of accomplishment. I can't remember the last time I did only 18 in a day". CNN
