Western Stima beat Coast Stima 1 - 0 to earn a promotion back to the Kenya top flight league; SPL, as second-placed KCB kept their direct promotion hopes alive with a 2 - 0 routing of Green Commandoes.
Mukisa Junior lone strike on the 88th minute was enough to power back the Western outfit to the top flight, garnering 76 points with two matches to spare, in a match played at Moi Stadium, Kisumu.
The power men were relegated last year.
At Camp Toyoyo grounds, NSL second-placed KCB beat Kakamega's Green Commandoes 2 - 0 to keep their hopes of promotion alive with two matches to play.
Dennis Nga'ng'a's free-kick deflected into the net to spur the banker's ahead in the 21st minute before Kennedy Owino sealed the victory for KCB with a second goal in the 62nd minute.
The bankers have now accrued 69 points.
In an earlier kick off at the same venue, Ushuru shared spoils with Nakuru's ST Joseph Youth in a 1 - 1 tie, to reduce their promotion chances.
Bill Oparia struck for the tax men as Kevin Taabu equalised for St Joseph. Ushuru lies 4th on the table with 62 points.
Nairobi Stima will have a chance to bridge the gap as they entertain Administration Police on Saturday at Camp Toyoyo in an early morning kick off.
Here is FKF National Super League Saturday Fixture:
1.Kenya Police vs Nairobi City Stars
2.Migori Youth VS Kibera Black Stars
3.Nakuru All-Stars vs Fc Talanta
3.Administration Police vs Nairobi Stima
4.Modern Coast Rangers vs GFE 105
5.Kisumu All Stars vs Kangemi All-Starsz