Coleman Wong Chak-lam has become the first Hongkonger to win an ATP Masters 1000 tournament match, beating Daniel Altmaier 6-4, 6-3 in the first round of the Miami Open.

James Allemby, Wong’s coach, hailed Thursday’s victory and said his young charge had looked comfortable against the German world No 82.

Up next for Wong is American world No 14 Ben Shelton, whom he faces on Saturday.

“What I liked about [the victory] was that it was so sustainable,” said Allemby, who guided Wong to a career-high ranking of 128 last year.

“There was never a feel of him redlining or really playing outside himself. It looked like a match that he could have won so many times in his career already, it looked like a Challenger match to him.”

The first set in the afternoon’s match in Miami went with serve until Wong broke with some smart play. The 20-year-old moved Altmaier from corner to corner before rushing to the net to hit a volley his counterpart could return only into Wong’s waiting drop shot.