Western Stima went down fighting after forcing a slim 1-0 win at the Chemelil Sports Complex through Wesley Kemboi. But Stima, who needed just one more goal to force relegation play-off battle against Thika United, lost the fight after host Thika recorded an identical 1-0 win over Bandari.
Stima, who had finished in top eight in the last two seasons, have been firing blanks this campaign - a disastrous journey that eventually saw them drop to the base.
Mwendwa also added that the 16th finisher in the KPL will play home and away in the play-off with the third-place finisher in the NSL.
Thika United survived automatic drop but will now have to wait until next weekend to know their next opponent in the play-off. Thika grabbed a point against Bandari at home to finish above Western Stima on goal difference.
Muhoroni Youth ended their six-year stay in the top league in a rather embarrassing style after falling 4-1 to AFC Leopards.