Regulation & Overtime Wins
New York Islanders
The Most NHL team winning streak was in 1987-1988, where the Detroit Redwings had a record of 65 Wins in a row at the end of the season, Their season ending record was the #1 in the league having a 73-5-4 record, they won the Stanley Cup going 27-5-1
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The 1971-72 Lakers won 33 in a row.
University of Oklahoma has the longest win streak in NCAA with 47 wins in a row in the 1950s (this includes home and away games).