RAY ALLEN won championships in Boston and Miami, made one of the most memorable shots in NBA Finals history and has more 3-pointers than anyone who ever played in the league.

    More than two years after his last game, he’s decided that was enough.

    Allen announced his retirement Tuesday in a post on The Players’ Tribune website. Allen spent 18 seasons in the league with Milwaukee, Seattle, the Celtics and the Heat, averaging 18.9 points in 1,300 regular-season games and appearing in 10 All-Star Games.

    “I write this to you today as a 41-year-old man who is retiring from the game,” Allen said in his post, which was in the form of a letter to his younger self. “I write to you as a man who is completely at peace with himself.”

    NBA Commissioner Adam Silver called Allen “an extraordinary player.”

    “On behalf of the NBA family, I want to thank him for being a wonderful ambassador for the game,” Silver said.

    Allen entertained thoughts about a comeback over the last two years and had plenty of opportunities from title-contending teams. But nothing ever lured him back.

    Allen had the record for 3-pointers in a season for seven years, his mark of 269 standing until Stephen Curry of Golden State made 272 in 2012-13 — a record Curry has topped twice.

    In all, Allen made 2,973 3-pointers in regular-season games.

    His 3-pointer from the right corner with 5.2 seconds left in Game 6 of the 2013 NBA Finals for Miami sent the Heat to overtime against the Spurs in a win-or-else game, and helped them go on to win the title in seven games. (SD-Agencies)