In 1936 Lapchick landed the coaching job at
St. John's University,
New York City. In 11 seasons he steered the Redmen to a 180–55 record and two consecutive
National Invitation Tournament titles, in 1943 and 1944. Overwhelmed by stress, Lapchick fainted during the second half of the 1944 final game. In 1947 he passed up a then-astronomical offer of $12,000 per year to stay at St. John's, opting instead to accept a job as coach of the
New York Knickerbockers of the fledgling
Basketball Association of America. Landing Lapchick was a big boost to the league, which was in only its second year of operation. He signed
Nathaniel "Sweetwater" Clifton to the Knicks, one of the league's first African-American players. Though a slick player and an admired coach, Lapchick was perhaps best known for his obsessive worrying and anxiety during games. He lived every second of every game as though it were the last tick of the clock. Stress related health problems ended his professional coaching career and caused an occasional on-court fainting spell and even a few heart attacks. Lapchick was respected for his motivational coaching style, which focused less on mechanics than on eliciting peak performances from his players. Stressing a freewheeling offensive approach and smooth ballhandling, Lapchick built winners at both the college and pro levels. As a player, Lapchick had sharp passing and shooting skills that made him one of the first great pro centers and that helped his teams win several championships. Continuing to emphasize his themes of personal achievement and responsibility, Lapchick was hired by the
New York Knicks for the
1947-48 season, the second in team history. He finished 2nd place in his first year and lost in the first round. The Knicks finished 2nd in the next two seasons, which saw them lose in the Division Finals each time before having it all come together in the 1950–51 season. They finished 36-30 for a third place in the Eastern Division, but they beat Syracuse in a
best-of-five series that went the distance to reach their first NBA Finals. They met the Rochester Royals, also making their first NBA Finals. The Knicks lost the first three games of the series, which had scores of 92–65, 99–84, and 78–71. The Knicks suddenly pulled off three straight close wins to even the series at three going into Game 7 in Rochester. They trailed by six at halftime but managed to reel in a late 74–72 lead in the final minutes of the fourth quarter. Rochester utilized a handful of free throws and jump balls (at the time, jump balls were done after a made free throw in the last three minutes of a game) to prevail 79–75. The Knicks improved by one win the following year but repeated a trip to the Finals with wins over
Boston and Syracuse. The Knicks met the
Minneapolis Lakers, who had won two league championships in the past three seasons under coach
John Kundla and player such as
George Mikan. The two teams split the first four games, which included wins for each team in overtime. Minneapolis won 102–89 to have the Knicks on the wall for Game 6, but they won 76–68 to force Game 7 on the road. In Game 7, the Lakers led by six after one quarter and never looked back in an 82–65 victory. The following year, the Knicks went 47–23 for their first ever division title (sixteen years later, the Knicks would set a new mark for wins). They then beat Baltimore and Boston to reach the Finals for the third straight year. The Knicks met the Lakers again and actually pulled off a 96–88 win on the road for Game 1. However, the Lakers would win the next four games, two of which came by two points to win the series in five games. Under Lapchick, the Knicks were the first NBA team to reach the Finals in three consecutive seasons. Coincidentally, the next team to reach the Finals three straight times and lose three in a row would be the Lakers, who reached the Finals in 1954 to set a three-peat before later losing three in a row from 1968 to 1970. The Knicks won the division again the following year but lost in the one-time
Round-robin tournament used for the playoffs that saw the Knicks lose four games combined to Boston and Syracuse with no wins. Lapchick's final full season came in 1954, where they went 38-34 and lost in the Division Semifinals to Boston. He did not finish out the 1955 season, which saw him leave after going 26–25 to be replaced by
Vince Boryla for the final 21 games. Ultimately, Lapchick led the Knicks to eight straight winning seasons and eight trips to the playoffs, including three straight
NBA Finals from 1951 to 1953. The
1953–54 Knicks were more than just a team of talented players; eight of them went on to coach pro or college teams, a tribute to Lapchick's leadership. Though a great motivator, Lapchick was a wild man on the sidelines, stomping on his coat, smashing chairs, and tossing various objects into the air. Stress-related health problems forced him to quit near the end of the
1955–56 season. He left the Knicks with a 326–247 NBA coaching record. Lapchick rested for only a month before returning to St. John's, where in nine more seasons he led the Redmen to two more
NIT crowns, giving them a record four titles. Lapchick wasn't just his players' basketball coach; he monitored their academic performance as well. The school's mandatory-retirement rules forced Lapchick, a two-time college Coach of the Year, to step down after the 1964–65 season at age 65. He had several heart attacks that year. The season ended with the Redmen upsetting
Villanova, 55–51, in an emotional
NIT Championship Game. Describing his final season at St. John's, Lapchick told the Washington, D.C.–based
Evening Star: "I used to double up with chest pains. Sometimes I couldn't even talk to the team during halftime." ==Later years and legacy==