VALTARO Wasteels B and London Rhinos will meet in the Bert Gaby Challenge Cup final.
Wasteels secured their place by edging out Real Northern 3-2 on Sunday, even though Northern took the lead when Paul Israel's thundering 35-yard strike went in off the underside of the bar.
Valtaro hit back, but Northern's Owen Greenow's 30th-minute header made it 2-1.
Valtaro levelled again before the break, and then scored the winner in the second half.
Meanwhile, the team they will face reserved their spot by beating Razors 2-0.
Goals from Rhinos pair Alan Jenkins and Chris Whittaker edged them into the final.
In league action, Albo Fantasy thrashed Wessex Rangers 8-0 in a literal six-pointer.
The winter snap meant the game became both the home and away fixture rolled into one, with Teri Curri crashing home four goals in this Division One clash, backed up by Gys Luli and Roland Jica, who netted two each for Albo.
In Division One, London Eleven and Academy drew 2-2 in the first of their back-to-back games, with Luke Bellord and Dom Shillingford scoring for Eleven.
But Eleven had more success in the second clash, winning 5-1, with Bellord scoring twice and Dan Clarke, Pete Watson and Mark
Rowntree all getting on Select's scoresheet to take the lion's share of the points.
In Division Three, London Rangers drew 1-1 with Eel Brook Rangers - but it could have easily been a win for London.
Wayne Taylor wrapped his right foot around a shot that cannoned in off the post to put London ahead, and Eel Brook equalised in the second half.
Antony Walsh's header hit the crossbar for London in the first half, and team-mate Andre Rouse struck the post from 30 yards in the second, but Lady Luck was on Eel Brook's side as they came away with a point.
In Division One, London Eagles flew four past one-goal Bec United.
Ayoub El-Ghaoubar, Luke Reynolds and Sais Oumaist were among the scorers for London Eagles. Meanwhile, in the same league, Eagles thrashed Kensington Athletic 5-1, and The Ship beat Battersea Park Rangers 1-0 in Division Two.