Watlington beat Ingoldisthorpe 3-2 in a closely contested North West Norfolk League Division One Knockout Cup final.
It allowed them to put one hand on a league and cup double, only for Birchwood to put a spanner in their spokes on Tuesday.
Birchwood beat leaders Heacham 4-1 on Saturday and raised their hopes of gatecrashing the top two with a 2-1 victory over Watlington to move to within two points of top spot.
Watlington remain favourites though, still having a game in hand on their rivals and with the benefit of already having one trophy tucked away after twice hitting back from behind.
Friday’s final at Fakenham saw few chances fall to either side until Kevin Leggett headed Ingoldisthorpe into the lead.
Ben Baxter-Hunt prodded home a swift equaliser after some clever work on the right.
Midway through the second half, Ingoldisthorpe undid Watlington’s back four from a set piece with a smart finish at the far post from Ed Patterson
Watlington looked to have run out of ideas but with less than three minutes remaining, Stuart Dunlop’s free-kick evaded everyone and dropped in at the far post to send the match into extra time.
Watlington looked the more likely winners and a hopeful clearance from Dan Camp put Baxter-Hunt clean through and he made no mistake as he lobbed home the winner.
Thornham grabbed the advantage in the race for the Division Two title with a 2-0 win over Docking on Saturday and a 6-3 success at Great Massingham on Tuesday to pull four points clear.
Redgate are second with two games in hand and River Lane a further two points in arrears, also from two games fewer, after a 1-0 win over Terrington.
Denver have to sit back and wait to see if they have done enough to lift the Division Three title after a 2-0 victory over Birchwood completed their season.
PKS Construction/Morris Armitage Denver man of the match Matthew Wolfe and Danny Brooks grabbed the goals, which leave South Creake needing to win their remaining two games to pip them. Both teams also have their eyes on a double, facing each other in the divisional cup final on April 27.
“We have to sit and wait for other results now,” said Denver manager Larry Halpin. “Whatever happens, the lads have had a superb season. We have won 16 and drawn two of 20 league games, and the only two losses were odd-goal defeats suffered in the last five minutes of both games.”
Upwell Town A threw away a 2-0 lead against The Woottons Reserves to end their title pursuit.
Upwell took the lead through Josh Pearce and Jake Gent, but conceded a goal before half-time.
In the second half, Upwell looked nervous and their opponents took advantage to score twice more. Ryan Cornforth, Jamie Miller and Spencer Yorke netted for the hosts, who gained three more points on Tuesday with a 2-1 win over bottom club Hunstanton Reserves.
Pentney and Springwood will contest the Charlie Day Cup final. Jake Rake scored twice in Pentney’s 3-2 win over Heacham A, while Robbie Preira struck a hat-trick in Springwood’s 6-1 rout of Ingoldisthorpe Reserves.