Ngong RFC will play Menengai Oilers in the Nationwide semis on Saturday May 6, 2017 after the two sides won their quarterfinal duels.
Oilers beat Maseno Nomads 20-3 while Ngong beat Central champions Embu RFC 24-7.
Second semifinal will see MKU Nairobi take on Egerton Wasps after Stingerz beat TUM Marines 13-10 while Wasps saw off Western kings Citam Kisumu 16-8.
Finalists will gain automatic qualification while losing semifinalists will go to playoffs with JKUAT Cougars and Thika RFC who finished ninth and tenth in the Championship with the winner going to Championship.
Ngong RFC v Menengai Oilers
MKU Nairobi v Egerton Wasps
Ngong 24 Embu 7
TUM 10 MKU Nairobi 13
CITAM Kisumu 8 Egerton Wasps 16
Menengai Oilers 20 Maseno 3