- Stoppage-time Vaulks strike gives Falkirk lead
- Bairns' Sibbald headed Boyd shot off the line
- Boyd also had header saved by Rogers
- Second leg at Rugby Park on Sunday
Before then, we'll also have live coverage of Saturday's Scottish Cup final, Rangers v Hibernian.
Almost time for me to go. We'll be back for Sunday's second leg.
"Happy to get the result. I felt we were fortunate to win 1-0. I think there's lots of lessons for our players to learn. We've got our goalkeeper to thank for a great save. The boys, again, we showed great character."
"Absolutely dreadful goal. The way it was scored was schoolboy stuff. I'm frustrated. I would've been okay with a 0-0, not delighted - I came here to win - but to be behind with a goal like that is terrible. We've got to dust ourselves down now and go again and score two goals at least to win it."
How many scoring chances did killie need to wrap up this match? I'm not a killie fan but that was blatant robbery by Falkirk tonight. Also another diabolical pen denial in the 1st half! Why? A player does not need to fall down in order for the pen to be given!
This tie ain't over. It's all to play for still
We never stop. We just showed what we're all about
Falkirk strike late again, this time to secure a first-leg advantage over Kilmarnock in the Premiership play-off final.
Killie now need to score at least twice in Sunday's return leg at Rugby Park to avoid relegation.
Falkirk take the lead in the tie. A Luke Leahy free-kick is rolled to Craig Sibbald, whose cut-back is fired in by Will Vaulks through a clutch of Kilmarnock players.
One minute of stoppage time starts.
A snapshot from Kris Boyd swerves over the Falkirk crossbar.
Falkirk's Bob McHugh acrobatically fires over.
Will Vaulks' awkward bouncing shot is nervously ushered out by Kilmarnock goalkeeper Jamie MacDonald.
Another fine save by Danny Rogers to keep out Kris Boyd's header but the Kilmarnock forward was flagged offside.
Myles Hippolyte comes on for Falkirk's John Baird.
Kris Boyd has an excellent chance at the back post after being found by a deep cross to the right but Danny Rogers stays on his feet to make the block.
Kilmarnock hands are raised in the hope of a spot-kick after the ball hits Falkirk's Aaron Muirhead. Was it handball?
BBC Scotland at the Falkirk Stadium
"Sheer effort and exertion are holding these two sides together. Quality has not been a prominent factor in the tie so far, with mistakes and uncertainty being the main influences in the game's threatening moments. Sheer bloody mindedness might be the deciding factor."
Now Falkirk's Mark Kerr is booked after a challenge with Mark O'Hara, but it was the Killie player who looked more at fault there.
John Baird's volley on the turn is wide of the Kilmarnock goal.
Kilmarnock forward Tope Obadeyi barges into Mark Kerr and is booked.
Craig Sibbald drags an effort wide of the Kilmarnock goal.
Now Falkirk threaten. Jamie MacDonald spills John Baird's ball in and needs Mark O'Hara to clear.
Scott Shepherd replaces Blair Alston for Falkirk.
Ryan: #bbcsportscot given Killie's home record this season, a win tonight is a must. I'll take 1-0
Kilmarnock well on top. Rory McKenzie curls wide from the edge of the Falkirk box.
What a chance for Kilmarnock. Kris Boyd hooks the ball forward and Tope Obadeyi is through.
His touch is poor but he still gets past goalkeeper Danny Rogers only to fire into the side netting.
Craig Sibbald heads off the line to clear Kris Boyd's netbound shot for Kilmarnock.
Kris Boyd's shot is deflected over but the Kilmarnock striker was offside.
Adam Wylie: I think killmarnock will win by two then lose on Sunday by 1
Tope Obadeyi stayed on his feet but could this have been a penalty to Kilmarnock after Luke Leahy's challenge?
BBC Scotland at the Falkirk Stadium
"Having worked their way back into the game, Falkirk have begun to exploit the weaknesses in the Kilmarnock defence. Bob McHugh and John Baird have the movement and quick feet to befuddle the opposition back line, and they looked increasingly threatening.
"If Falkirk can maintain that, they will create chances, which Kilmarnock have failed to do so far."
Kilmarnock kick off for the second period.
No scoring in the opening 45 minutes at the Falkirk Stadium.