Zulu Royals' poor season continued when they were beaten 4-0 by a rampant Amakhosi in a Castle Premiership game played at a packed Absa Stadium on Wednesday afternoon.
Chiefs took the game to their struggling hosts from the very first whistle and did not lot let up throughout the entire 90 minutes.
However, it did take them until the 28th minute to get on the scoreboard when a long through ball from Stanton Fredericks put Patrick Mayo through on goal, and the Bafana Bafana international made no mistake with his finish.
With John 'Shoes' Moshoeu, Tenashe Nengomashe and Thabo Mooki all pulling the strings in the midfield for Chiefs, it came as no surprise when they increased their lead in the 48th minute, albeit through an own goal by Sam Nzama.
In the second stanza Chiefs continued to dictate play and put the game out of Royals' reach when Fredericks added a third after being set up by Mooki.
Swazi striker Sibusiso Dlamini then added salt to the wounds of the Usuthu faithful when he scored in the 89th minute after receiving an excellent pass from Kaizer Motaung Junior.
The result sees Royals slipping even closer to the relegation zone - they are only above 15th placed Silver Stars on goal difference, and the Limpopo-based side have two games in hand.
New coach Walter Rautmann, who is renowned for his ability to resurrect struggling clubs, has not had the best of starts to his new career - he has only managed to beat Hellenic in the four games since taking over at the Durban-based side.
Chiefs, meanwhile, cemented their place at the top of the log, leaving it up to the chasing pack to try and keep pace with him.