Jimmy Mullen was top of the leaderboard after the first round of the South American Amateur Championship in Colombia.
The 20-year-old Royal North Devon golfer from East-the-Water carded a six-under-par 66 at the Sabanilla Country Club in Barranquilla yesterday to lead by three shots.
Mullen said playing at his windswept home course in Westward Ho! helped him cope with a strong crosswind yesterday. He was one of only three players to go under par and shot an eagle and seven birdies.
Mullen told the tournament website: "I did not start well but then I made the eagle on the 11th and went on to get into the round. I kept the ball on the fairway most of the time and was very happy with the way I played.
"The key was patience. I'm used to playing in the wind in England and that definitely helped me."
Mullen is hoping to be the second Englishman in a row to lift the Arturo Calle Cup after Callum Shinkwin won in Bogotá, Colombia, last year.
He is joined in the field by England team-mates Ashley Chesters, Paul Howard and Nick Marsh.