Having only previously enjoyed short stints in the Top 50 low down the list, the three-belt top division ruler has now plowed his way into the Top 20 by taking the #16 spot.
‘AJ’ scored a crushing stoppage win over Wladimir Klitschko having picked himself up from the brink of defeat in the sixth round, in a contest that is a strong contender for Fight of the Year.
Joshua overtakes the likes of Adrien Broner, Julius Indongo and Juan Estrada on the list and sits just behind WBC title holder Shinsuke Yamanaka with the Top 15 in sight.
Andre Ward still leads the way ahead of his rematch with Sergey Kovalev, whilst Manny Pacquiao, Gennady Golovkin, Vasyl Lomachenko and Roman Gonzalez make up the first five on the WBN Pound for Pound ratings.
Terence Crawford, Kovalev, Canelo, Guillermo Rigondeaux and welterweight king Keith Thurman finalize the rest of the Top 10.
The next fight that could see a shift in the placings happens next Saturday night when Canelo battles Julio Cesar Chavez Jr. at the T-Mobile Arena in Las Vegas.