They each face a top three side, but a win would propel them ahead of the others in the battle for the last playoff spot.
Ardmore Marist travels to Colin Lawrie Fields to face a Pukekohe side reeling from a narrow loss to Bombay last week.
Manurewa will head to Karaka Sports Complex to take on Karaka, while Bombay faces Patumahoe in Patumahoe.
“We really need five points out of this game to control our own destiny leading into the last round,” said Ardmore Marist coach Suliasi Taufalele.
“Bombay didn’t do us any favours beating Puke [last weekend] and they [Pukekohe] will be keen to get back in the winner’s circle.
“So it doesn’t get any easier for us.”
The two top-ranked sides in the Sid Marshall Shield battle it out when Te Kauwhata hosts Weymouth at Te Kauwhata Domain.
Onewhero heads to Drury in the other fixture in the top bracket.
In the bottom bracket, Te Kohanga heads to Mountfort Park to play Manurewa, while Puni hosts Tuakau.
Runaway leaders Karaka host Manurewa in the Massey Cup U21 competition. In other games, Waiuku travels to Pukekohe while Ardmore Marist hosts Patumahoe.
Waiuku and Manurewa meet in a Bright Cup U19 game on Saturday while Patumahoe hosts College Rifles under lights on Friday.
Neighbours Patumahoe and Karaka battle it out in the U85kg grade while in other fixtures, Beachlands Maraetai hosts Drury, Bombay travels to Hamilton Marist, Pukekohe is at home to Morrinsville Sports, and Waiuku visits Fraser Tech in Hamilton.
