The four ladder points awarded to the winner of Saturday's match-up between Hillgrove and Guyra will prove very valuable.
The winner will claim second spot and a place in Sunday's one-day grand final against Easts.
Guyra sit two points in front of Hillgrove as it stands and, should they win, can confirm their place.
Hillgrove are out to leap-frog them into second and have their sights set on long-time rivals Easts.
"A big game for us this weekend," co-captain Matt Schaefer said.
"Obviously they [Guyra] went well on the weekend to have a tie with Easts so it should be a pretty good game Saturday.
"They have got around us early in the season but I think we have hit our straps a little bit as well."
Hillgrove toppled City in their last outing two weeks ago and will take confidence from the win.
However they will be without bowlers Sean Skinner and Liam Neeson.
"A few good overs there we will be missing and Liam is pretty good with the bat as well," Schaefer said.
"We are bringing in Andrew Curry with a mountain of experience and he will be pretty good with the new ball down the hill.
"Will Waterson comes back in.
"We pretty much operate with a squad of 12 so having two out, it pretty much meant having to bring Cuz in.
"Cuz has played a heap of cricket for Hillgrove and a couple of games he played in first grade at the start of the season, he definitely wasn't out of place.
"He was our best bowler in one of the games, he bowled 20 straight and the one-day format should suit him a bit better only having to get through nine."
Guyra will be missing spearhead of their bowling attack, Tyson Burey, and second-in-command Jason Campbell but welcome back skipper Matt Jackson.
Their line-up is yet to be finalised with a host of second graders putting their hand up to fill in the remaining spot after solid performances in recent weeks.
If it comes down to the wire, Schaefer is confident the experienced Hillgrove line-up can get over the line.
"We have got a lot of players who have played big games throughout their careers," he said.
"Having that leadership will help guys coming through. I would really like to beat Guyra and get in against Easts on Sunday and have a good tussle as well.
"We have played a lot of cricket against each other over the years and a lot of finals so it would be good to have another one."
Should Hillgrove topple Guyra on Saturday and make the one-day final, their line-up will remain unchanged.
"I think Neeso and Skins are away for the weekend so I think we would take the same 11 guys into Sunday," Schaefer said.