We haven't seen a team mow through three straight opponents sporting winning percentages of .750 or better, as the Memphis Grizzlies just did, since the opening month of the 2000-01 season.
And we've never seen the Grizzlies sporting the league's best record this deep into an NBA season.
Two big reasons why you suddenly see the Grizzlies atop ESPN.com's weekly NBA Power Rankings.
The Grizz were already off to a fine start, but consecutive wins last week on the road in Oklahoma City and at home against New York -- after the previous Sunday's dismantling of Miami -- ensured that Memphis made the four-spot jump from No. 5 to No. 1.
The Knicks retained the No. 2 slot largely on the strength of their big comeback at San Antonio when the Spurs were still carrying the No. 1 overall ranking. San Antonio and Miami, meanwhile, are down to No. 4 and No. 5, respectively, thanks not only to Memphis' jump but the rise of the surging Los Angeles Clippers to No. 3. (The Grizzlies, for the record, are the first team since Cleveland in November 2000 to beat three straight .750-or-better teams, according to the Elias Sports Bureau.)
The rankings are compiled with ever-helpful dishing from ESPN Stats & Info and the Elias Sports Bureau. Click here to rank the teams yourself.