Menengai Oilers hit Catholic Monks 36-0 at the Nakuru Athletics Club on Saturday morning to set off Prinsloo Sevens, the first leg of the six-part National Sevens Circuit.
The pool C opener then laid the groundwork for Impala to register a 40-7 win over Mombasa RFC in the second game.
Game three lit the cold grounds as Varsity boys Back Blad tied fancied Kenya Harlequins 12-12 Inthe first pool B game.
Homeboyz took advantage of that draw to shoot to the top of the group with a 30-5 win over Kisumu in game 4.
Into game 5 that activated Pool A, Mwamba had the best possible start after seeing off Strathmore Leos 26-17.
Menengai Oilers 36 Catholic Monks 0
Impala Saracens 40 Mombasa RFC 7
Harlequins 12 Black Blad 12
Homeboyz 30 Kisumu 5
Mwamba 26 Strathmore 17