Victor Wembanyama just had the fastest double-double in NBA history: 8 minutes, 31 seconds
Source: https://www.espn.com/nba/story/_/id/48352523/victor-wembanyama-records-fastest-double-double-history
Wembanyama had 10 points and 10 rebounds in his first 8 minutes, 31 seconds on the court, collecting his 10th rebound 1:55 into the second quarter. Jim Washington of the St. Louis Hawks had a double-double in nine minutes against the New York Knicks on March 6, 1966.