But the Goats are not planning on returning the favour tomorrow.
They will host the Central Otago premier final at Anderson Park today. But, if they are honest, they were expecting a trip to Wanaka to play Upper Clutha instead.
However, Arrowtown seems to save its best for Upper Clutha.
It beat the defending champion three times this season, including in the semifinal last weekend.
The tense 14-13 win secured it a spot in the final and did Cromwell a favour.
The Goats get to host their first final and manager Russell Decke let it slip he was a little relieved the opponent will be Arrowtown and not Upper Clutha.
"A home final was our hope," he said.
"Arrowtown did well. They beat Upper Clutha three times and we never beat Upper Clutha at all this year. They are a pretty formidable team."
While Arrowtown might be the preferred opponent, Decke is expecting another close match.
The teams met earlier this month and Cromwell slotted a late penalty to win 16-15 and hold on to the White Horse Cup.
"There is not much between the top teams. It is just on the day, I think."
Cromwell's focus this week has been coming up with a way to ensure it gets parity up front. Arrowtown has a strong scrum and will look to pressure the home team in the set pieces.
The Goats will look to locks Stefan Blakeborough and Cody Mitchell for some big shifts in the engine room, while openside Daniel Hurring will have a good duel with opposite Johnny Appleby.
Arrowtown loosehead prop Tom McKenzie has had an impressive season and will need to put in one more good performance.
Halfback Jackson Wallace and lock Malcolm Sutherland shape as key figures as well.
Arrowtown manager Ben Finn conceded the side's form had been up and down but "we're clicking at the right time of the year".
"Upper Clutha is the only side in the top four that we beat all season, so that was a pretty good effort to beat them three times.
"I don't know if it was because they were top of the table that we sort of got up for it. But it just seemed like every time we played them everything clicked.
"Hopefully, we can take that form into the final."
Finn felt Arrowtown stopped playing rugby in its one-point loss to Cromwell and it would not make that mistake again.
"We went into our shell. There was probably too long to go in the match to tie it up.
"We've sort of learned from that. We've got to keep playing footy in those dying stages.
"I don't think they have a weakness. They are pretty strong around the paddock.
"But one thing we have noticed is our scrum dominated them ... so we will be looking at going after them there again and having a real crack at them."