Willmott's deflected strike set Cambridge on their way
Cambridge United hit a late goal to beat Stevenage 3-0 after extra time and secure their place in the Blue Square Premier play-off final.
Scott Rendell was the U's hero as his 119th-minute shot gave them a dramatic 4-3 win on aggregate.
The home side took the lead on 56 minutes with a deflected shot from winger Robbie Willmott.
Rendell then doubled the U's lead 16 minutes later after latching onto Wayne Hatswell's header from close range.
They will now play Torquay in the final at Wembley on Sunday, 17 May after the south-coast club overcame Histon 2-1 on aggregate, despite losing 1-0 in the second leg.
Cambridge United and Stevenage both had chances to break the deadlock in a lively first half with Stevenage spurning a great opportunity.
The game opened up after 10 minutes and both sides enjoyed chances.
Cambridge's opening goal came as Willmott's shot from the corner of the area took a wicked deflection off Borough substitute Lawrie Wilson.
Their second came following a long spell of pressure when Hatswell flicked the ball on to Rendell, who was able to find the net from close range.
Callum Willock had a great chance to level the aggregate score but he was dealt with brilliantly by defender Dan Gleeson when through on goal.
Willock was again involved in a good chance for the visitors, three minutes before the end of normal time, when his flick-on found Michael Bostwick, but the midfielder's shot from a difficult angle flashed wide of the goal.
Stevenage continued to pile on the pressure in the closing stages and went close to snatching victory but Steve Morison was unable to put the ball over the line.
Borough were reduced to 10 men in extra-time when Scott Laird was sent off for a second yellow card, and the defender will now miss their FA Trophy final clash with York City.
Then Borough's first-team coach Dino Maamria was sent to the stands for kicking the ball away when it had gone out for a Cambridge throw-in.
Peterborough loanee Rendell went close to sealing the win but narrowly missed with a header. Just minutes later though he side-footed home from close range after Paul Carden's shot was spilled by Stevenage keeper Chris Day.
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