In the relegation battle, Melville are all but certain to face the drop after Matamata secured a big result against Cambridge. Matamata needed at least a draw to move out of the drop zone ahead of Melville.
They drew 1-1 with Cambridge at home.
That means, disregarding a miracle this weekend, Melville and Tauranga Boys' College will be relegated to the Federation Two competition next season.
Rotorua United and Katikati are the two sides coming up to Federation One next year.
Waikato Bay of Plenty Football results on Saturday:
Federation One: Matamata Swifts 1 Cambridge 1, Tauranga Boys' College 1 Otumoetai 4, Hukanui Rototuna 0 Taupo 1, Ngongotaha 4 Tauranga Old Blues 1.