That side goes straight to the grand final while the second and third teams will have a playoff to see who joins them.
Whatever the game result, Reweti wants a much-improved performance from that seen in April.
"I think we're on the right track at the moment, still got the bulk of the good players. Hopefully we reverse it."
Bad weather could also play a role, while Boxon are without the services of their standout centre Che Barlow, who'll watch from the sidelines with injury.
Barlow was outstanding last Sunday for the Manawatu Mustangs in their 32-18 win in the second game of the representative series with Taranaki.
He scored two tries, set up another for Boxon second-row team mate Jordan Davis and split the defence all day.
Fellow Boxon winger Pentuakau Turia-Bennett also scored a try in the representative clash. "They were all playing on the left-hand side that's how they work," said Reweti.
While pleased for his guys' success, the Barlow injury and two weeks' gap between club matches has highlighted his frustrations with the Manawatu competition.
A team pulling out of the grade led to the draw being rejigged, and gap weeks for representative games to be played has also been disruptive.
Kickoff today at Linton Army Camp is 1pm.
